639472460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{10271}}^1$

素因数の和:10574

約数の個数: 48

約数和(自身を含む): 1470292992

約数和(自身を除く): 830820532

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 283, 566, 1132, 1415, 2830, 3113, 5660, 6226, 10271, 12452, 15565, 20542, 31130, 41084, 51355, 62260, 102710, 112981, 205420, 225962, 451924, 564905, 1129810, 2259620, 2906693, 5813386, 11626772, 14533465, 29066930, 31973623, 58133860, 63947246, 127894492, 159868115, 319736230, 639472460]

約数ペア:

[(1, 639472460), (2, 319736230), (4, 159868115), (5, 127894492), (10, 63947246), (11, 58133860), (20, 31973623), (22, 29066930), (44, 14533465), (55, 11626772), (110, 5813386), (220, 2906693), (283, 2259620), (566, 1129810), (1132, 564905), (1415, 451924), (2830, 225962), (3113, 205420), (5660, 112981), (6226, 102710), (10271, 62260), (12452, 51355), (15565, 41084), (20542, 31130)]