388614660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{925273}}^1$

素因数の和:925292

約数の個数: 48

約数和(自身を含む): 1243568256

約数和(自身を除く): 854953596

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 925273, 1850546, 2775819, 3701092, 4626365, 5551638, 6476911, 9252730, 11103276, 12953822, 13879095, 18505460, 19430733, 25907644, 27758190, 32384555, 38861466, 55516380, 64769110, 77722932, 97153665, 129538220, 194307330, 388614660]

約数ペア:

[(1, 388614660), (2, 194307330), (3, 129538220), (4, 97153665), (5, 77722932), (6, 64769110), (7, 55516380), (10, 38861466), (12, 32384555), (14, 27758190), (15, 25907644), (20, 19430733), (21, 18505460), (28, 13879095), (30, 12953822), (35, 11103276), (42, 9252730), (60, 6476911), (70, 5551638), (84, 4626365), (105, 3701092), (140, 2775819), (210, 1850546), (420, 925273)]