31252880

素因数分解:

$2^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1621}}^1$

素因数の和:1875

約数の個数: 40

約数和(自身を含む): 73009464

約数和(自身を除く): 41756584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241, 482, 964, 1205, 1621, 1928, 2410, 3242, 3856, 4820, 6484, 8105, 9640, 12968, 16210, 19280, 25936, 32420, 64840, 129680, 390661, 781322, 1562644, 1953305, 3125288, 3906610, 6250576, 7813220, 15626440, 31252880]

約数ペア:

[(1, 31252880), (2, 15626440), (4, 7813220), (5, 6250576), (8, 3906610), (10, 3125288), (16, 1953305), (20, 1562644), (40, 781322), (80, 390661), (241, 129680), (482, 64840), (964, 32420), (1205, 25936), (1621, 19280), (1928, 16210), (2410, 12968), (3242, 9640), (3856, 8105), (4820, 6484)]