87061640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1151}}^1$

素因数の和:1254

約数の個数: 64

約数和(自身を含む): 205701120

約数和(自身を除く): 118639480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 1151, 1220, 1240, 1891, 2302, 2440, 3782, 4604, 5755, 7564, 9208, 9455, 11510, 15128, 18910, 23020, 35681, 37820, 46040, 70211, 71362, 75640, 140422, 142724, 178405, 280844, 285448, 351055, 356810, 561688, 702110, 713620, 1404220, 1427240, 2176541, 2808440, 4353082, 8706164, 10882705, 17412328, 21765410, 43530820, 87061640]

約数ペア:

[(1, 87061640), (2, 43530820), (4, 21765410), (5, 17412328), (8, 10882705), (10, 8706164), (20, 4353082), (31, 2808440), (40, 2176541), (61, 1427240), (62, 1404220), (122, 713620), (124, 702110), (155, 561688), (244, 356810), (248, 351055), (305, 285448), (310, 280844), (488, 178405), (610, 142724), (620, 140422), (1151, 75640), (1220, 71362), (1240, 70211), (1891, 46040), (2302, 37820), (2440, 35681), (3782, 23020), (4604, 18910), (5755, 15128), (7564, 11510), (9208, 9455)]