61566620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{499}}^1$

素因数の和:738

約数の個数: 48

約数和(自身を含む): 134400000

約数和(自身を除く): 72833380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 199, 310, 398, 499, 620, 796, 995, 998, 1990, 1996, 2495, 3980, 4990, 6169, 9980, 12338, 15469, 24676, 30845, 30938, 61690, 61876, 77345, 99301, 123380, 154690, 198602, 309380, 397204, 496505, 993010, 1986020, 3078331, 6156662, 12313324, 15391655, 30783310, 61566620]

約数ペア:

[(1, 61566620), (2, 30783310), (4, 15391655), (5, 12313324), (10, 6156662), (20, 3078331), (31, 1986020), (62, 993010), (124, 496505), (155, 397204), (199, 309380), (310, 198602), (398, 154690), (499, 123380), (620, 99301), (796, 77345), (995, 61876), (998, 61690), (1990, 30938), (1996, 30845), (2495, 24676), (3980, 15469), (4990, 12338), (6169, 9980)]