28621840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:141

約数の個数: 120

約数和(自身を含む): 75564360

約数和(自身を除く): 46942520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 73, 80, 104, 116, 130, 145, 146, 169, 208, 232, 260, 290, 292, 338, 365, 377, 464, 520, 580, 584, 676, 730, 754, 845, 949, 1040, 1160, 1168, 1352, 1460, 1508, 1690, 1885, 1898, 2117, 2320, 2704, 2920, 3016, 3380, 3770, 3796, 4234, 4745, 4901, 5840, 6032, 6760, 7540, 7592, 8468, 9490, 9802, 10585, 12337, 13520, 15080, 15184, 16936, 18980, 19604, 21170, 24505, 24674, 27521, 30160, 33872, 37960, 39208, 42340, 49010, 49348, 55042, 61685, 75920, 78416, 84680, 98020, 98696, 110084, 123370, 137605, 169360, 196040, 197392, 220168, 246740, 275210, 357773, 392080, 440336, 493480, 550420, 715546, 986960, 1100840, 1431092, 1788865, 2201680, 2862184, 3577730, 5724368, 7155460, 14310920, 28621840]

約数ペア:

[(1, 28621840), (2, 14310920), (4, 7155460), (5, 5724368), (8, 3577730), (10, 2862184), (13, 2201680), (16, 1788865), (20, 1431092), (26, 1100840), (29, 986960), (40, 715546), (52, 550420), (58, 493480), (65, 440336), (73, 392080), (80, 357773), (104, 275210), (116, 246740), (130, 220168), (145, 197392), (146, 196040), (169, 169360), (208, 137605), (232, 123370), (260, 110084), (290, 98696), (292, 98020), (338, 84680), (365, 78416), (377, 75920), (464, 61685), (520, 55042), (580, 49348), (584, 49010), (676, 42340), (730, 39208), (754, 37960), (845, 33872), (949, 30160), (1040, 27521), (1160, 24674), (1168, 24505), (1352, 21170), (1460, 19604), (1508, 18980), (1690, 16936), (1885, 15184), (1898, 15080), (2117, 13520), (2320, 12337), (2704, 10585), (2920, 9802), (3016, 9490), (3380, 8468), (3770, 7592), (3796, 7540), (4234, 6760), (4745, 6032), (4901, 5840)]