26978680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21757}}^1$

素因数の和:21799

約数の個数: 32

約数和(自身を含む): 62663040

約数和(自身を除く): 35684360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 21757, 43514, 87028, 108785, 174056, 217570, 435140, 674467, 870280, 1348934, 2697868, 3372335, 5395736, 6744670, 13489340, 26978680]

約数ペア:

[(1, 26978680), (2, 13489340), (4, 6744670), (5, 5395736), (8, 3372335), (10, 2697868), (20, 1348934), (31, 870280), (40, 674467), (62, 435140), (124, 217570), (155, 174056), (248, 108785), (310, 87028), (620, 43514), (1240, 21757)]