205208875

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:696

約数の個数: 32

約数和(自身を含む): 269702784

約数和(自身を除く): 64493909

約数列:

[1, 5, 23, 25, 115, 125, 137, 521, 575, 685, 2605, 2875, 3151, 3425, 11983, 13025, 15755, 17125, 59915, 65125, 71377, 78775, 299575, 356885, 393875, 1497875, 1641671, 1784425, 8208355, 8922125, 41041775, 205208875]

約数ペア:

[(1, 205208875), (5, 41041775), (23, 8922125), (25, 8208355), (115, 1784425), (125, 1641671), (137, 1497875), (521, 393875), (575, 356885), (685, 299575), (2605, 78775), (2875, 71377), (3151, 65125), (3425, 59915), (11983, 17125), (13025, 15755)]