31334480

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6421}}^1$

素因数の和:6495

約数の個数: 40

約数和(自身を含む): 74058504

約数和(自身を除く): 42724024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 6421, 12842, 25684, 32105, 51368, 64210, 102736, 128420, 256840, 391681, 513680, 783362, 1566724, 1958405, 3133448, 3916810, 6266896, 7833620, 15667240, 31334480]

約数ペア:

[(1, 31334480), (2, 15667240), (4, 7833620), (5, 6266896), (8, 3916810), (10, 3133448), (16, 1958405), (20, 1566724), (40, 783362), (61, 513680), (80, 391681), (122, 256840), (244, 128420), (305, 102736), (488, 64210), (610, 51368), (976, 32105), (1220, 25684), (2440, 12842), (4880, 6421)]