20182660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 43972992

約数和(自身を除く): 23790332

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 151, 163, 164, 205, 302, 326, 410, 604, 652, 755, 815, 820, 1510, 1630, 3020, 3260, 6191, 6683, 12382, 13366, 24613, 24764, 26732, 30955, 33415, 49226, 61910, 66830, 98452, 123065, 123820, 133660, 246130, 492260, 1009133, 2018266, 4036532, 5045665, 10091330, 20182660]

約数ペア:

[(1, 20182660), (2, 10091330), (4, 5045665), (5, 4036532), (10, 2018266), (20, 1009133), (41, 492260), (82, 246130), (151, 133660), (163, 123820), (164, 123065), (205, 98452), (302, 66830), (326, 61910), (410, 49226), (604, 33415), (652, 30955), (755, 26732), (815, 24764), (820, 24613), (1510, 13366), (1630, 12382), (3020, 6683), (3260, 6191)]