40171980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1637}}^1$

素因数の和:2058

約数の個数: 48

約数和(自身を含む): 112825440

約数和(自身を除く): 72653460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 409, 818, 1227, 1636, 1637, 2045, 2454, 3274, 4090, 4908, 4911, 6135, 6548, 8180, 8185, 9822, 12270, 16370, 19644, 24540, 24555, 32740, 49110, 98220, 669533, 1339066, 2008599, 2678132, 3347665, 4017198, 6695330, 8034396, 10042995, 13390660, 20085990, 40171980]

約数ペア:

[(1, 40171980), (2, 20085990), (3, 13390660), (4, 10042995), (5, 8034396), (6, 6695330), (10, 4017198), (12, 3347665), (15, 2678132), (20, 2008599), (30, 1339066), (60, 669533), (409, 98220), (818, 49110), (1227, 32740), (1636, 24555), (1637, 24540), (2045, 19644), (2454, 16370), (3274, 12270), (4090, 9822), (4908, 8185), (4911, 8180), (6135, 6548)]