521103980

素因数分解:

$2^2\times 5^1\times {\mathrm{4721}}^1\times {\mathrm{5519}}^1$

素因数の和:10249

約数の個数: 24

約数和(自身を含む): 1094748480

約数和(自身を除く): 573644500

約数列:

[1, 2, 4, 5, 10, 20, 4721, 5519, 9442, 11038, 18884, 22076, 23605, 27595, 47210, 55190, 94420, 110380, 26055199, 52110398, 104220796, 130275995, 260551990, 521103980]

約数ペア:

[(1, 521103980), (2, 260551990), (4, 130275995), (5, 104220796), (10, 52110398), (20, 26055199), (4721, 110380), (5519, 94420), (9442, 55190), (11038, 47210), (18884, 27595), (22076, 23605)]