204550280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{1171}}^1$

素因数の和:1590

約数の個数: 64

約数和(自身を含む): 503772480

約数和(自身を除く): 299222200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 397, 440, 794, 1171, 1588, 1985, 2342, 3176, 3970, 4367, 4684, 5855, 7940, 8734, 9368, 11710, 12881, 15880, 17468, 21835, 23420, 25762, 34936, 43670, 46840, 51524, 64405, 87340, 103048, 128810, 174680, 257620, 464887, 515240, 929774, 1859548, 2324435, 3719096, 4648870, 5113757, 9297740, 10227514, 18595480, 20455028, 25568785, 40910056, 51137570, 102275140, 204550280]

約数ペア:

[(1, 204550280), (2, 102275140), (4, 51137570), (5, 40910056), (8, 25568785), (10, 20455028), (11, 18595480), (20, 10227514), (22, 9297740), (40, 5113757), (44, 4648870), (55, 3719096), (88, 2324435), (110, 1859548), (220, 929774), (397, 515240), (440, 464887), (794, 257620), (1171, 174680), (1588, 128810), (1985, 103048), (2342, 87340), (3176, 64405), (3970, 51524), (4367, 46840), (4684, 43670), (5855, 34936), (7940, 25762), (8734, 23420), (9368, 21835), (11710, 17468), (12881, 15880)]