28015240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63671}}^1$

素因数の和:63693

約数の個数: 32

約数和(自身を含む): 68765760

約数和(自身を除く): 40750520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 63671, 127342, 254684, 318355, 509368, 636710, 700381, 1273420, 1400762, 2546840, 2801524, 3501905, 5603048, 7003810, 14007620, 28015240]

約数ペア:

[(1, 28015240), (2, 14007620), (4, 7003810), (5, 5603048), (8, 3501905), (10, 2801524), (11, 2546840), (20, 1400762), (22, 1273420), (40, 700381), (44, 636710), (55, 509368), (88, 318355), (110, 254684), (220, 127342), (440, 63671)]