85791880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1609}}^1$

素因数の和:1694

約数の個数: 64

約数和(自身を含む): 204019200

約数和(自身を除く): 118227320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 860, 1240, 1333, 1609, 1720, 2666, 3218, 5332, 6436, 6665, 8045, 10664, 12872, 13330, 16090, 26660, 32180, 49879, 53320, 64360, 69187, 99758, 138374, 199516, 249395, 276748, 345935, 399032, 498790, 553496, 691870, 997580, 1383740, 1995160, 2144797, 2767480, 4289594, 8579188, 10723985, 17158376, 21447970, 42895940, 85791880]

約数ペア:

[(1, 85791880), (2, 42895940), (4, 21447970), (5, 17158376), (8, 10723985), (10, 8579188), (20, 4289594), (31, 2767480), (40, 2144797), (43, 1995160), (62, 1383740), (86, 997580), (124, 691870), (155, 553496), (172, 498790), (215, 399032), (248, 345935), (310, 276748), (344, 249395), (430, 199516), (620, 138374), (860, 99758), (1240, 69187), (1333, 64360), (1609, 53320), (1720, 49879), (2666, 32180), (3218, 26660), (5332, 16090), (6436, 13330), (6665, 12872), (8045, 10664)]