66985625

素因数分解:

$5^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:339

約数の個数: 40

約数和(自身を含む): 97618752

約数和(自身を除く): 30633127

約数列:

[1, 5, 7, 25, 35, 61, 125, 175, 251, 305, 427, 625, 875, 1255, 1525, 1757, 2135, 4375, 6275, 7625, 8785, 10675, 15311, 31375, 38125, 43925, 53375, 76555, 107177, 156875, 219625, 266875, 382775, 535885, 1098125, 1913875, 2679425, 9569375, 13397125, 66985625]

約数ペア:

[(1, 66985625), (5, 13397125), (7, 9569375), (25, 2679425), (35, 1913875), (61, 1098125), (125, 535885), (175, 382775), (251, 266875), (305, 219625), (427, 156875), (625, 107177), (875, 76555), (1255, 53375), (1525, 43925), (1757, 38125), (2135, 31375), (4375, 15311), (6275, 10675), (7625, 8785)]