28557980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{479}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 65802240

約数和(自身を除く): 37244260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 271, 479, 542, 958, 1084, 1355, 1916, 2395, 2710, 2981, 4790, 5269, 5420, 5962, 9580, 10538, 11924, 14905, 21076, 26345, 29810, 52690, 59620, 105380, 129809, 259618, 519236, 649045, 1298090, 1427899, 2596180, 2855798, 5711596, 7139495, 14278990, 28557980]

約数ペア:

[(1, 28557980), (2, 14278990), (4, 7139495), (5, 5711596), (10, 2855798), (11, 2596180), (20, 1427899), (22, 1298090), (44, 649045), (55, 519236), (110, 259618), (220, 129809), (271, 105380), (479, 59620), (542, 52690), (958, 29810), (1084, 26345), (1355, 21076), (1916, 14905), (2395, 11924), (2710, 10538), (2981, 9580), (4790, 5962), (5269, 5420)]