27221720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:828

約数の個数: 64

約数和(自身を含む): 65491200

約数和(自身を除く): 38269480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 757, 899, 1160, 1240, 1514, 1798, 3028, 3596, 3785, 4495, 6056, 7192, 7570, 8990, 15140, 17980, 21953, 23467, 30280, 35960, 43906, 46934, 87812, 93868, 109765, 117335, 175624, 187736, 219530, 234670, 439060, 469340, 680543, 878120, 938680, 1361086, 2722172, 3402715, 5444344, 6805430, 13610860, 27221720]

約数ペア:

[(1, 27221720), (2, 13610860), (4, 6805430), (5, 5444344), (8, 3402715), (10, 2722172), (20, 1361086), (29, 938680), (31, 878120), (40, 680543), (58, 469340), (62, 439060), (116, 234670), (124, 219530), (145, 187736), (155, 175624), (232, 117335), (248, 109765), (290, 93868), (310, 87812), (580, 46934), (620, 43906), (757, 35960), (899, 30280), (1160, 23467), (1240, 21953), (1514, 17980), (1798, 15140), (3028, 8990), (3596, 7570), (3785, 7192), (4495, 6056)]