19756840

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3271}}^1$

素因数の和:3433

約数の個数: 32

約数和(自身を含む): 44760960

約数和(自身を除く): 25004120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 3271, 6040, 6542, 13084, 16355, 26168, 32710, 65420, 130840, 493921, 987842, 1975684, 2469605, 3951368, 4939210, 9878420, 19756840]

約数ペア:

[(1, 19756840), (2, 9878420), (4, 4939210), (5, 3951368), (8, 2469605), (10, 1975684), (20, 987842), (40, 493921), (151, 130840), (302, 65420), (604, 32710), (755, 26168), (1208, 16355), (1510, 13084), (3020, 6542), (3271, 6040)]