2015920

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:349

約数の個数: 40

約数和(自身を含む): 4749696

約数和(自身を除く): 2733776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 223, 226, 446, 452, 565, 892, 904, 1115, 1130, 1784, 1808, 2230, 2260, 3568, 4460, 4520, 8920, 9040, 17840, 25199, 50398, 100796, 125995, 201592, 251990, 403184, 503980, 1007960, 2015920]

約数ペア:

[(1, 2015920), (2, 1007960), (4, 503980), (5, 403184), (8, 251990), (10, 201592), (16, 125995), (20, 100796), (40, 50398), (80, 25199), (113, 17840), (223, 9040), (226, 8920), (446, 4520), (452, 4460), (565, 3568), (892, 2260), (904, 2230), (1115, 1808), (1130, 1784)]