71421320

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{10321}}^1$

素因数の和:10505

約数の個数: 32

約数和(自身を含む): 161642520

約数和(自身を除く): 90221200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 10321, 20642, 41284, 51605, 82568, 103210, 206420, 412840, 1785533, 3571066, 7142132, 8927665, 14284264, 17855330, 35710660, 71421320]

約数ペア:

[(1, 71421320), (2, 35710660), (4, 17855330), (5, 14284264), (8, 8927665), (10, 7142132), (20, 3571066), (40, 1785533), (173, 412840), (346, 206420), (692, 103210), (865, 82568), (1384, 51605), (1730, 41284), (3460, 20642), (6920, 10321)]