256943856

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{17903}}^1$

素因数の和:17950

約数の個数: 80

約数和(自身を含む): 745952256

約数和(自身を除く): 489008400

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 39, 46, 48, 52, 69, 78, 92, 104, 138, 156, 184, 208, 276, 299, 312, 368, 552, 598, 624, 897, 1104, 1196, 1794, 2392, 3588, 4784, 7176, 14352, 17903, 35806, 53709, 71612, 107418, 143224, 214836, 232739, 286448, 411769, 429672, 465478, 698217, 823538, 859344, 930956, 1235307, 1396434, 1647076, 1861912, 2470614, 2792868, 3294152, 3723824, 4941228, 5352997, 5585736, 6588304, 9882456, 10705994, 11171472, 16058991, 19764912, 21411988, 32117982, 42823976, 64235964, 85647952, 128471928, 256943856]

約数ペア:

[(1, 256943856), (2, 128471928), (3, 85647952), (4, 64235964), (6, 42823976), (8, 32117982), (12, 21411988), (13, 19764912), (16, 16058991), (23, 11171472), (24, 10705994), (26, 9882456), (39, 6588304), (46, 5585736), (48, 5352997), (52, 4941228), (69, 3723824), (78, 3294152), (92, 2792868), (104, 2470614), (138, 1861912), (156, 1647076), (184, 1396434), (208, 1235307), (276, 930956), (299, 859344), (312, 823538), (368, 698217), (552, 465478), (598, 429672), (624, 411769), (897, 286448), (1104, 232739), (1196, 214836), (1794, 143224), (2392, 107418), (3588, 71612), (4784, 53709), (7176, 35806), (14352, 17903)]