31511272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:506

約数の個数: 64

約数和(自身を含む): 68947200

約数和(自身を除く): 37435928

約数列:

[1, 2, 4, 8, 13, 19, 26, 37, 38, 52, 74, 76, 104, 148, 152, 247, 296, 431, 481, 494, 703, 862, 962, 988, 1406, 1724, 1924, 1976, 2812, 3448, 3848, 5603, 5624, 8189, 9139, 11206, 15947, 16378, 18278, 22412, 31894, 32756, 36556, 44824, 63788, 65512, 73112, 106457, 127576, 207311, 212914, 302993, 414622, 425828, 605986, 829244, 851656, 1211972, 1658488, 2423944, 3938909, 7877818, 15755636, 31511272]

約数ペア:

[(1, 31511272), (2, 15755636), (4, 7877818), (8, 3938909), (13, 2423944), (19, 1658488), (26, 1211972), (37, 851656), (38, 829244), (52, 605986), (74, 425828), (76, 414622), (104, 302993), (148, 212914), (152, 207311), (247, 127576), (296, 106457), (431, 73112), (481, 65512), (494, 63788), (703, 44824), (862, 36556), (962, 32756), (988, 31894), (1406, 22412), (1724, 18278), (1924, 16378), (1976, 15947), (2812, 11206), (3448, 9139), (3848, 8189), (5603, 5624)]