20154687020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1\times {\mathrm{6469}}^1$

素因数の和:7035

約数の個数: 96

約数和(自身を含む): 47661022080

約数和(自身を除く): 27506335060

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 521, 598, 1042, 1196, 1495, 2084, 2605, 2990, 5210, 5980, 6469, 6773, 10420, 11983, 12938, 13546, 23966, 25876, 27092, 32345, 33865, 47932, 59915, 64690, 67730, 84097, 119830, 129380, 135460, 148787, 155779, 168194, 239660, 297574, 311558, 336388, 420485, 595148, 623116, 743935, 778895, 840970, 1487870, 1557790, 1681940, 1934231, 2975740, 3115580, 3370349, 3868462, 6740698, 7736924, 9671155, 13481396, 16851745, 19342310, 33703490, 38684620, 43814537, 67406980, 77518027, 87629074, 155036054, 175258148, 219072685, 310072108, 387590135, 438145370, 775180270, 876290740, 1007734351, 1550360540, 2015468702, 4030937404, 5038671755, 10077343510, 20154687020]

約数ペア:

[(1, 20154687020), (2, 10077343510), (4, 5038671755), (5, 4030937404), (10, 2015468702), (13, 1550360540), (20, 1007734351), (23, 876290740), (26, 775180270), (46, 438145370), (52, 387590135), (65, 310072108), (92, 219072685), (115, 175258148), (130, 155036054), (230, 87629074), (260, 77518027), (299, 67406980), (460, 43814537), (521, 38684620), (598, 33703490), (1042, 19342310), (1196, 16851745), (1495, 13481396), (2084, 9671155), (2605, 7736924), (2990, 6740698), (5210, 3868462), (5980, 3370349), (6469, 3115580), (6773, 2975740), (10420, 1934231), (11983, 1681940), (12938, 1557790), (13546, 1487870), (23966, 840970), (25876, 778895), (27092, 743935), (32345, 623116), (33865, 595148), (47932, 420485), (59915, 336388), (64690, 311558), (67730, 297574), (84097, 239660), (119830, 168194), (129380, 155779), (135460, 148787)]