128229625

素因数分解:

$5^3\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:394

約数の個数: 32

約数和(自身を含む): 165739392

約数和(自身を除く): 37509767

約数列:

[1, 5, 25, 61, 67, 125, 251, 305, 335, 1255, 1525, 1675, 4087, 6275, 7625, 8375, 15311, 16817, 20435, 31375, 76555, 84085, 102175, 382775, 420425, 510875, 1025837, 1913875, 2102125, 5129185, 25645925, 128229625]

約数ペア:

[(1, 128229625), (5, 25645925), (25, 5129185), (61, 2102125), (67, 1913875), (125, 1025837), (251, 510875), (305, 420425), (335, 382775), (1255, 102175), (1525, 84085), (1675, 76555), (4087, 31375), (6275, 20435), (7625, 16817), (8375, 15311)]