21557680

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{7283}}^1$

素因数の和:7333

約数の個数: 40

約数和(自身を含む): 51483312

約数和(自身を除く): 29925632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 7283, 14566, 29132, 36415, 58264, 72830, 116528, 145660, 269471, 291320, 538942, 582640, 1077884, 1347355, 2155768, 2694710, 4311536, 5389420, 10778840, 21557680]

約数ペア:

[(1, 21557680), (2, 10778840), (4, 5389420), (5, 4311536), (8, 2694710), (10, 2155768), (16, 1347355), (20, 1077884), (37, 582640), (40, 538942), (74, 291320), (80, 269471), (148, 145660), (185, 116528), (296, 72830), (370, 58264), (592, 36415), (740, 29132), (1480, 14566), (2960, 7283)]