72556880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2011}}^1$

素因数の和:2076

約数の個数: 80

約数和(自身を含む): 188612928

約数和(自身を除く): 116056048

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 328, 410, 440, 451, 656, 820, 880, 902, 1640, 1804, 2011, 2255, 3280, 3608, 4022, 4510, 7216, 8044, 9020, 10055, 16088, 18040, 20110, 22121, 32176, 36080, 40220, 44242, 80440, 82451, 88484, 110605, 160880, 164902, 176968, 221210, 329804, 353936, 412255, 442420, 659608, 824510, 884840, 906961, 1319216, 1649020, 1769680, 1813922, 3298040, 3627844, 4534805, 6596080, 7255688, 9069610, 14511376, 18139220, 36278440, 72556880]

約数ペア:

[(1, 72556880), (2, 36278440), (4, 18139220), (5, 14511376), (8, 9069610), (10, 7255688), (11, 6596080), (16, 4534805), (20, 3627844), (22, 3298040), (40, 1813922), (41, 1769680), (44, 1649020), (55, 1319216), (80, 906961), (82, 884840), (88, 824510), (110, 659608), (164, 442420), (176, 412255), (205, 353936), (220, 329804), (328, 221210), (410, 176968), (440, 164902), (451, 160880), (656, 110605), (820, 88484), (880, 82451), (902, 80440), (1640, 44242), (1804, 40220), (2011, 36080), (2255, 32176), (3280, 22121), (3608, 20110), (4022, 18040), (4510, 16088), (7216, 10055), (8044, 9020)]