20177072875

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{11903}}^1$

素因数の和:12180

約数の個数: 32

約数和(自身を含む): 25671499776

約数和(自身を除く): 5494426901

約数列:

[1, 5, 25, 71, 125, 191, 355, 955, 1775, 4775, 8875, 11903, 13561, 23875, 59515, 67805, 297575, 339025, 845113, 1487875, 1695125, 2273473, 4225565, 11367365, 21127825, 56836825, 105639125, 161416583, 284184125, 807082915, 4035414575, 20177072875]

約数ペア:

[(1, 20177072875), (5, 4035414575), (25, 807082915), (71, 284184125), (125, 161416583), (191, 105639125), (355, 56836825), (955, 21127825), (1775, 11367365), (4775, 4225565), (8875, 2273473), (11903, 1695125), (13561, 1487875), (23875, 845113), (59515, 339025), (67805, 297575)]