18889420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4519}}^1$

素因数の和:4558

約数の個数: 48

約数和(自身を含む): 45561600

約数和(自身を除く): 26672180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4519, 9038, 18076, 22595, 45190, 49709, 85861, 90380, 99418, 171722, 198836, 248545, 343444, 429305, 497090, 858610, 944471, 994180, 1717220, 1888942, 3777884, 4722355, 9444710, 18889420]

約数ペア:

[(1, 18889420), (2, 9444710), (4, 4722355), (5, 3777884), (10, 1888942), (11, 1717220), (19, 994180), (20, 944471), (22, 858610), (38, 497090), (44, 429305), (55, 343444), (76, 248545), (95, 198836), (110, 171722), (190, 99418), (209, 90380), (220, 85861), (380, 49709), (418, 45190), (836, 22595), (1045, 18076), (2090, 9038), (4180, 4519)]