138185875

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{547}}^1$

素因数の和:652

約数の個数: 32

約数和(自身を含む): 180550656

約数和(自身を除く): 42364781

約数列:

[1, 5, 25, 43, 47, 125, 215, 235, 547, 1075, 1175, 2021, 2735, 5375, 5875, 10105, 13675, 23521, 25709, 50525, 68375, 117605, 128545, 252625, 588025, 642725, 1105487, 2940125, 3213625, 5527435, 27637175, 138185875]

約数ペア:

[(1, 138185875), (5, 27637175), (25, 5527435), (43, 3213625), (47, 2940125), (125, 1105487), (215, 642725), (235, 588025), (547, 252625), (1075, 128545), (1175, 117605), (2021, 68375), (2735, 50525), (5375, 25709), (5875, 23521), (10105, 13675)]