31204840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2161}}^1$

素因数の和:2210

約数の個数: 48

約数和(自身を含む): 74134980

約数和(自身を除く): 42930140

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2161, 2888, 3610, 4322, 7220, 8644, 10805, 14440, 17288, 21610, 41059, 43220, 82118, 86440, 164236, 205295, 328472, 410590, 780121, 821180, 1560242, 1642360, 3120484, 3900605, 6240968, 7801210, 15602420, 31204840]

約数ペア:

[(1, 31204840), (2, 15602420), (4, 7801210), (5, 6240968), (8, 3900605), (10, 3120484), (19, 1642360), (20, 1560242), (38, 821180), (40, 780121), (76, 410590), (95, 328472), (152, 205295), (190, 164236), (361, 86440), (380, 82118), (722, 43220), (760, 41059), (1444, 21610), (1805, 17288), (2161, 14440), (2888, 10805), (3610, 8644), (4322, 7220)]