20178891720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479081}}^1$

素因数の和:479117

約数の個数: 160

約数和(自身を含む): 73040841720

約数和(自身を除く): 52861950000

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, 81, 90, 104, 108, 117, 120, 130, 135, 156, 162, 180, 195, 216, 234, 260, 270, 312, 324, 351, 360, 390, 405, 468, 520, 540, 585, 648, 702, 780, 810, 936, 1053, 1080, 1170, 1404, 1560, 1620, 1755, 2106, 2340, 2808, 3240, 3510, 4212, 4680, 5265, 7020, 8424, 10530, 14040, 21060, 42120, 479081, 958162, 1437243, 1916324, 2395405, 2874486, 3832648, 4311729, 4790810, 5748972, 6228053, 7186215, 8623458, 9581620, 11497944, 12456106, 12935187, 14372430, 17246916, 18684159, 19163240, 21558645, 24912212, 25870374, 28744860, 31140265, 34493832, 37368318, 38805561, 43117290, 49824424, 51740748, 56052477, 57489720, 62280530, 64675935, 74736636, 77611122, 86234580, 93420795, 103481496, 112104954, 124561060, 129351870, 149473272, 155222244, 168157431, 172469160, 186841590, 194027805, 224209908, 249122120, 258703740, 280262385, 310444488, 336314862, 373683180, 388055610, 448419816, 504472293, 517407480, 560524770, 672629724, 747366360, 776111220, 840787155, 1008944586, 1121049540, 1345259448, 1552222440, 1681574310, 2017889172, 2242099080, 2522361465, 3363148620, 4035778344, 5044722930, 6726297240, 10089445860, 20178891720]

約数ペア:

[(1, 20178891720), (2, 10089445860), (3, 6726297240), (4, 5044722930), (5, 4035778344), (6, 3363148620), (8, 2522361465), (9, 2242099080), (10, 2017889172), (12, 1681574310), (13, 1552222440), (15, 1345259448), (18, 1121049540), (20, 1008944586), (24, 840787155), (26, 776111220), (27, 747366360), (30, 672629724), (36, 560524770), (39, 517407480), (40, 504472293), (45, 448419816), (52, 388055610), (54, 373683180), (60, 336314862), (65, 310444488), (72, 280262385), (78, 258703740), (81, 249122120), (90, 224209908), (104, 194027805), (108, 186841590), (117, 172469160), (120, 168157431), (130, 155222244), (135, 149473272), (156, 129351870), (162, 124561060), (180, 112104954), (195, 103481496), (216, 93420795), (234, 86234580), (260, 77611122), (270, 74736636), (312, 64675935), (324, 62280530), (351, 57489720), (360, 56052477), (390, 51740748), (405, 49824424), (468, 43117290), (520, 38805561), (540, 37368318), (585, 34493832), (648, 31140265), (702, 28744860), (780, 25870374), (810, 24912212), (936, 21558645), (1053, 19163240), (1080, 18684159), (1170, 17246916), (1404, 14372430), (1560, 12935187), (1620, 12456106), (1755, 11497944), (2106, 9581620), (2340, 8623458), (2808, 7186215), (3240, 6228053), (3510, 5748972), (4212, 4790810), (4680, 4311729), (5265, 3832648), (7020, 2874486), (8424, 2395405), (10530, 1916324), (14040, 1437243), (21060, 958162), (42120, 479081)]