311986480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9677}}^1$

素因数の和:9734

約数の個数: 80

約数和(自身を含む): 806448384

約数和(自身を除く): 494461904

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 9677, 16120, 19354, 32240, 38708, 48385, 77416, 96770, 125801, 154832, 193540, 251602, 299987, 387080, 503204, 599974, 629005, 774160, 1006408, 1199948, 1258010, 1499935, 2012816, 2399896, 2516020, 2999870, 3899831, 4799792, 5032040, 5999740, 7799662, 10064080, 11999480, 15599324, 19499155, 23998960, 31198648, 38998310, 62397296, 77996620, 155993240, 311986480]

約数ペア:

[(1, 311986480), (2, 155993240), (4, 77996620), (5, 62397296), (8, 38998310), (10, 31198648), (13, 23998960), (16, 19499155), (20, 15599324), (26, 11999480), (31, 10064080), (40, 7799662), (52, 5999740), (62, 5032040), (65, 4799792), (80, 3899831), (104, 2999870), (124, 2516020), (130, 2399896), (155, 2012816), (208, 1499935), (248, 1258010), (260, 1199948), (310, 1006408), (403, 774160), (496, 629005), (520, 599974), (620, 503204), (806, 387080), (1040, 299987), (1240, 251602), (1612, 193540), (2015, 154832), (2480, 125801), (3224, 96770), (4030, 77416), (6448, 48385), (8060, 38708), (9677, 32240), (16120, 19354)]