31046840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1721}}^1$

素因数の和:1784

約数の個数: 64

約数和(自身を含む): 78109920

約数和(自身を除く): 47063080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1640, 1721, 1804, 2255, 3442, 3608, 4510, 6884, 8605, 9020, 13768, 17210, 18040, 18931, 34420, 37862, 68840, 70561, 75724, 94655, 141122, 151448, 189310, 282244, 352805, 378620, 564488, 705610, 757240, 776171, 1411220, 1552342, 2822440, 3104684, 3880855, 6209368, 7761710, 15523420, 31046840]

約数ペア:

[(1, 31046840), (2, 15523420), (4, 7761710), (5, 6209368), (8, 3880855), (10, 3104684), (11, 2822440), (20, 1552342), (22, 1411220), (40, 776171), (41, 757240), (44, 705610), (55, 564488), (82, 378620), (88, 352805), (110, 282244), (164, 189310), (205, 151448), (220, 141122), (328, 94655), (410, 75724), (440, 70561), (451, 68840), (820, 37862), (902, 34420), (1640, 18931), (1721, 18040), (1804, 17210), (2255, 13768), (3442, 9020), (3608, 8605), (4510, 6884)]