28374940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1277}}^1$

素因数の和:1398

約数の個数: 48

約数和(自身を含む): 65699424

約数和(自身を除く): 37324484

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 1277, 2020, 2222, 2554, 4444, 5108, 5555, 6385, 11110, 12770, 14047, 22220, 25540, 28094, 56188, 70235, 128977, 140470, 257954, 280940, 515908, 644885, 1289770, 1418747, 2579540, 2837494, 5674988, 7093735, 14187470, 28374940]

約数ペア:

[(1, 28374940), (2, 14187470), (4, 7093735), (5, 5674988), (10, 2837494), (11, 2579540), (20, 1418747), (22, 1289770), (44, 644885), (55, 515908), (101, 280940), (110, 257954), (202, 140470), (220, 128977), (404, 70235), (505, 56188), (1010, 28094), (1111, 25540), (1277, 22220), (2020, 14047), (2222, 12770), (2554, 11110), (4444, 6385), (5108, 5555)]