19972920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{15131}}^1$

素因数の和:15156

約数の個数: 64

約数和(自身を含む): 65370240

約数和(自身を除く): 45397320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 15131, 30262, 45393, 60524, 75655, 90786, 121048, 151310, 166441, 181572, 226965, 302620, 332882, 363144, 453930, 499323, 605240, 665764, 832205, 907860, 998646, 1331528, 1664410, 1815720, 1997292, 2496615, 3328820, 3994584, 4993230, 6657640, 9986460, 19972920]

約数ペア:

[(1, 19972920), (2, 9986460), (3, 6657640), (4, 4993230), (5, 3994584), (6, 3328820), (8, 2496615), (10, 1997292), (11, 1815720), (12, 1664410), (15, 1331528), (20, 998646), (22, 907860), (24, 832205), (30, 665764), (33, 605240), (40, 499323), (44, 453930), (55, 363144), (60, 332882), (66, 302620), (88, 226965), (110, 181572), (120, 166441), (132, 151310), (165, 121048), (220, 90786), (264, 75655), (330, 60524), (440, 45393), (660, 30262), (1320, 15131)]