40770320

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6451}}^1$

素因数の和:6543

約数の個数: 40

約数和(自身を含む): 96005760

約数和(自身を除く): 55235440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 6451, 12902, 25804, 32255, 51608, 64510, 103216, 129020, 258040, 509629, 516080, 1019258, 2038516, 2548145, 4077032, 5096290, 8154064, 10192580, 20385160, 40770320]

約数ペア:

[(1, 40770320), (2, 20385160), (4, 10192580), (5, 8154064), (8, 5096290), (10, 4077032), (16, 2548145), (20, 2038516), (40, 1019258), (79, 516080), (80, 509629), (158, 258040), (316, 129020), (395, 103216), (632, 64510), (790, 51608), (1264, 32255), (1580, 25804), (3160, 12902), (6320, 6451)]