20455985160

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{631}}^1\times {\mathrm{2309}}^1$

素因数の和:2973

約数の個数: 256

約数和(自身を含む): 73579968000

約数和(自身を除く): 53123982840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 631, 702, 780, 936, 1080, 1170, 1262, 1404, 1560, 1755, 1893, 2309, 2340, 2524, 2808, 3155, 3510, 3786, 4618, 4680, 5048, 5679, 6310, 6927, 7020, 7572, 8203, 9236, 9465, 11358, 11545, 12620, 13854, 14040, 15144, 16406, 17037, 18472, 18930, 20781, 22716, 23090, 24609, 25240, 27708, 28395, 30017, 32812, 34074, 34635, 37860, 41015, 41562, 45432, 46180, 49218, 55416, 56790, 60034, 62343, 65624, 68148, 69270, 73827, 75720, 82030, 83124, 85185, 90051, 92360, 98436, 103905, 113580, 120068, 123045, 124686, 136296, 138540, 147654, 150085, 164060, 166248, 170370, 180102, 196872, 207810, 221481, 227160, 240136, 246090, 249372, 270153, 277080, 295308, 300170, 311715, 328120, 340740, 360204, 369135, 415620, 442962, 450255, 492180, 498744, 540306, 590616, 600340, 623430, 681480, 720408, 738270, 810459, 831240, 885924, 900510, 984360, 1080612, 1107405, 1200680, 1246860, 1350765, 1456979, 1476540, 1620918, 1771848, 1801020, 2161224, 2214810, 2493720, 2701530, 2913958, 2953080, 3241836, 3602040, 4052295, 4370937, 4429620, 5403060, 5827916, 6483672, 7284895, 8104590, 8741874, 8859240, 10806120, 11655832, 13112811, 14569790, 16209180, 17483748, 18940727, 21854685, 26225622, 29139580, 32418360, 34967496, 37881454, 39338433, 43709370, 52451244, 56822181, 58279160, 65564055, 75762908, 78676866, 87418740, 94703635, 104902488, 113644362, 131128110, 151525816, 157353732, 170466543, 174837480, 189407270, 196692165, 227288724, 262256220, 284110905, 314707464, 340933086, 378814540, 393384330, 454577448, 511399629, 524512440, 568221810, 681866172, 757629080, 786768660, 852332715, 1022799258, 1136443620, 1363732344, 1573537320, 1704665430, 2045598516, 2272887240, 2556998145, 3409330860, 4091197032, 5113996290, 6818661720, 10227992580, 20455985160]

約数ペア:

[(1, 20455985160), (2, 10227992580), (3, 6818661720), (4, 5113996290), (5, 4091197032), (6, 3409330860), (8, 2556998145), (9, 2272887240), (10, 2045598516), (12, 1704665430), (13, 1573537320), (15, 1363732344), (18, 1136443620), (20, 1022799258), (24, 852332715), (26, 786768660), (27, 757629080), (30, 681866172), (36, 568221810), (39, 524512440), (40, 511399629), (45, 454577448), (52, 393384330), (54, 378814540), (60, 340933086), (65, 314707464), (72, 284110905), (78, 262256220), (90, 227288724), (104, 196692165), (108, 189407270), (117, 174837480), (120, 170466543), (130, 157353732), (135, 151525816), (156, 131128110), (180, 113644362), (195, 104902488), (216, 94703635), (234, 87418740), (260, 78676866), (270, 75762908), (312, 65564055), (351, 58279160), (360, 56822181), (390, 52451244), (468, 43709370), (520, 39338433), (540, 37881454), (585, 34967496), (631, 32418360), (702, 29139580), (780, 26225622), (936, 21854685), (1080, 18940727), (1170, 17483748), (1262, 16209180), (1404, 14569790), (1560, 13112811), (1755, 11655832), (1893, 10806120), (2309, 8859240), (2340, 8741874), (2524, 8104590), (2808, 7284895), (3155, 6483672), (3510, 5827916), (3786, 5403060), (4618, 4429620), (4680, 4370937), (5048, 4052295), (5679, 3602040), (6310, 3241836), (6927, 2953080), (7020, 2913958), (7572, 2701530), (8203, 2493720), (9236, 2214810), (9465, 2161224), (11358, 1801020), (11545, 1771848), (12620, 1620918), (13854, 1476540), (14040, 1456979), (15144, 1350765), (16406, 1246860), (17037, 1200680), (18472, 1107405), (18930, 1080612), (20781, 984360), (22716, 900510), (23090, 885924), (24609, 831240), (25240, 810459), (27708, 738270), (28395, 720408), (30017, 681480), (32812, 623430), (34074, 600340), (34635, 590616), (37860, 540306), (41015, 498744), (41562, 492180), (45432, 450255), (46180, 442962), (49218, 415620), (55416, 369135), (56790, 360204), (60034, 340740), (62343, 328120), (65624, 311715), (68148, 300170), (69270, 295308), (73827, 277080), (75720, 270153), (82030, 249372), (83124, 246090), (85185, 240136), (90051, 227160), (92360, 221481), (98436, 207810), (103905, 196872), (113580, 180102), (120068, 170370), (123045, 166248), (124686, 164060), (136296, 150085), (138540, 147654)]