31541840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:588

約数の個数: 80

約数和(自身を含む): 81262656

約数和(自身を除く): 49720816

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 73, 80, 88, 110, 146, 176, 220, 292, 365, 440, 491, 584, 730, 803, 880, 982, 1168, 1460, 1606, 1964, 2455, 2920, 3212, 3928, 4015, 4910, 5401, 5840, 6424, 7856, 8030, 9820, 10802, 12848, 16060, 19640, 21604, 27005, 32120, 35843, 39280, 43208, 54010, 64240, 71686, 86416, 108020, 143372, 179215, 216040, 286744, 358430, 394273, 432080, 573488, 716860, 788546, 1433720, 1577092, 1971365, 2867440, 3154184, 3942730, 6308368, 7885460, 15770920, 31541840]

約数ペア:

[(1, 31541840), (2, 15770920), (4, 7885460), (5, 6308368), (8, 3942730), (10, 3154184), (11, 2867440), (16, 1971365), (20, 1577092), (22, 1433720), (40, 788546), (44, 716860), (55, 573488), (73, 432080), (80, 394273), (88, 358430), (110, 286744), (146, 216040), (176, 179215), (220, 143372), (292, 108020), (365, 86416), (440, 71686), (491, 64240), (584, 54010), (730, 43208), (803, 39280), (880, 35843), (982, 32120), (1168, 27005), (1460, 21604), (1606, 19640), (1964, 16060), (2455, 12848), (2920, 10802), (3212, 9820), (3928, 8030), (4015, 7856), (4910, 6424), (5401, 5840)]