25109680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:566

約数の個数: 80

約数和(自身を含む): 63612000

約数和(自身を除く): 38502320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 37, 40, 68, 74, 80, 85, 136, 148, 170, 185, 272, 296, 340, 370, 499, 592, 629, 680, 740, 998, 1258, 1360, 1480, 1996, 2495, 2516, 2960, 3145, 3992, 4990, 5032, 6290, 7984, 8483, 9980, 10064, 12580, 16966, 18463, 19960, 25160, 33932, 36926, 39920, 42415, 50320, 67864, 73852, 84830, 92315, 135728, 147704, 169660, 184630, 295408, 313871, 339320, 369260, 627742, 678640, 738520, 1255484, 1477040, 1569355, 2510968, 3138710, 5021936, 6277420, 12554840, 25109680]

約数ペア:

[(1, 25109680), (2, 12554840), (4, 6277420), (5, 5021936), (8, 3138710), (10, 2510968), (16, 1569355), (17, 1477040), (20, 1255484), (34, 738520), (37, 678640), (40, 627742), (68, 369260), (74, 339320), (80, 313871), (85, 295408), (136, 184630), (148, 169660), (170, 147704), (185, 135728), (272, 92315), (296, 84830), (340, 73852), (370, 67864), (499, 50320), (592, 42415), (629, 39920), (680, 36926), (740, 33932), (998, 25160), (1258, 19960), (1360, 18463), (1480, 16966), (1996, 12580), (2495, 10064), (2516, 9980), (2960, 8483), (3145, 7984), (3992, 6290), (4990, 5032)]