20841480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:324

約数の個数: 192

約数和(自身を含む): 78062400

約数和(自身を除く): 57220920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 19, 20, 22, 24, 30, 33, 36, 38, 40, 44, 45, 55, 57, 60, 66, 72, 76, 88, 90, 95, 99, 110, 114, 120, 132, 152, 165, 171, 180, 190, 198, 209, 220, 228, 264, 277, 285, 330, 342, 360, 380, 396, 418, 440, 456, 495, 554, 570, 627, 660, 684, 760, 792, 831, 836, 855, 990, 1045, 1108, 1140, 1254, 1320, 1368, 1385, 1662, 1672, 1710, 1881, 1980, 2090, 2216, 2280, 2493, 2508, 2770, 3047, 3135, 3324, 3420, 3762, 3960, 4155, 4180, 4986, 5016, 5263, 5540, 6094, 6270, 6648, 6840, 7524, 8310, 8360, 9141, 9405, 9972, 10526, 11080, 12188, 12465, 12540, 15048, 15235, 15789, 16620, 18282, 18810, 19944, 21052, 24376, 24930, 25080, 26315, 27423, 30470, 31578, 33240, 36564, 37620, 42104, 45705, 47367, 49860, 52630, 54846, 57893, 60940, 63156, 73128, 75240, 78945, 91410, 94734, 99720, 105260, 109692, 115786, 121880, 126312, 137115, 157890, 173679, 182820, 189468, 210520, 219384, 231572, 236835, 274230, 289465, 315780, 347358, 365640, 378936, 463144, 473670, 521037, 548460, 578930, 631560, 694716, 868395, 947340, 1042074, 1096920, 1157860, 1389432, 1736790, 1894680, 2084148, 2315720, 2605185, 3473580, 4168296, 5210370, 6947160, 10420740, 20841480]

約数ペア:

[(1, 20841480), (2, 10420740), (3, 6947160), (4, 5210370), (5, 4168296), (6, 3473580), (8, 2605185), (9, 2315720), (10, 2084148), (11, 1894680), (12, 1736790), (15, 1389432), (18, 1157860), (19, 1096920), (20, 1042074), (22, 947340), (24, 868395), (30, 694716), (33, 631560), (36, 578930), (38, 548460), (40, 521037), (44, 473670), (45, 463144), (55, 378936), (57, 365640), (60, 347358), (66, 315780), (72, 289465), (76, 274230), (88, 236835), (90, 231572), (95, 219384), (99, 210520), (110, 189468), (114, 182820), (120, 173679), (132, 157890), (152, 137115), (165, 126312), (171, 121880), (180, 115786), (190, 109692), (198, 105260), (209, 99720), (220, 94734), (228, 91410), (264, 78945), (277, 75240), (285, 73128), (330, 63156), (342, 60940), (360, 57893), (380, 54846), (396, 52630), (418, 49860), (440, 47367), (456, 45705), (495, 42104), (554, 37620), (570, 36564), (627, 33240), (660, 31578), (684, 30470), (760, 27423), (792, 26315), (831, 25080), (836, 24930), (855, 24376), (990, 21052), (1045, 19944), (1108, 18810), (1140, 18282), (1254, 16620), (1320, 15789), (1368, 15235), (1385, 15048), (1662, 12540), (1672, 12465), (1710, 12188), (1881, 11080), (1980, 10526), (2090, 9972), (2216, 9405), (2280, 9141), (2493, 8360), (2508, 8310), (2770, 7524), (3047, 6840), (3135, 6648), (3324, 6270), (3420, 6094), (3762, 5540), (3960, 5263), (4155, 5016), (4180, 4986)]