15819920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6379}}^1$

素因数の和:6423

約数の個数: 40

約数和(自身を含む): 37973760

約数和(自身を除く): 22153840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 6379, 12758, 25516, 31895, 51032, 63790, 102064, 127580, 197749, 255160, 395498, 510320, 790996, 988745, 1581992, 1977490, 3163984, 3954980, 7909960, 15819920]

約数ペア:

[(1, 15819920), (2, 7909960), (4, 3954980), (5, 3163984), (8, 1977490), (10, 1581992), (16, 988745), (20, 790996), (31, 510320), (40, 395498), (62, 255160), (80, 197749), (124, 127580), (155, 102064), (248, 63790), (310, 51032), (496, 31895), (620, 25516), (1240, 12758), (2480, 6379)]