28882040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1601}}^1$

素因数の和:1664

約数の個数: 64

約数和(自身を含む): 72666720

約数和(自身を除く): 43784680

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, 1601, 1640, 1804, 2255, 3202, 3608, 4510, 6404, 8005, 9020, 12808, 16010, 17611, 18040, 32020, 35222, 64040, 65641, 70444, 88055, 131282, 140888, 176110, 262564, 328205, 352220, 525128, 656410, 704440, 722051, 1312820, 1444102, 2625640, 2888204, 3610255, 5776408, 7220510, 14441020, 28882040]

約数ペア:

[(1, 28882040), (2, 14441020), (4, 7220510), (5, 5776408), (8, 3610255), (10, 2888204), (11, 2625640), (20, 1444102), (22, 1312820), (40, 722051), (41, 704440), (44, 656410), (55, 525128), (82, 352220), (88, 328205), (110, 262564), (164, 176110), (205, 140888), (220, 131282), (328, 88055), (410, 70444), (440, 65641), (451, 64040), (820, 35222), (902, 32020), (1601, 18040), (1640, 17611), (1804, 16010), (2255, 12808), (3202, 9020), (3608, 8005), (4510, 6404)]