251072720

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{3491}}^1$

素因数の和:3564

約数の個数: 80

約数和(自身を含む): 623531520

約数和(自身を除く): 372458800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 290, 310, 464, 496, 580, 620, 899, 1160, 1240, 1798, 2320, 2480, 3491, 3596, 4495, 6982, 7192, 8990, 13964, 14384, 17455, 17980, 27928, 34910, 35960, 55856, 69820, 71920, 101239, 108221, 139640, 202478, 216442, 279280, 404956, 432884, 506195, 541105, 809912, 865768, 1012390, 1082210, 1619824, 1731536, 2024780, 2164420, 3138409, 4049560, 4328840, 6276818, 8099120, 8657680, 12553636, 15692045, 25107272, 31384090, 50214544, 62768180, 125536360, 251072720]

約数ペア:

[(1, 251072720), (2, 125536360), (4, 62768180), (5, 50214544), (8, 31384090), (10, 25107272), (16, 15692045), (20, 12553636), (29, 8657680), (31, 8099120), (40, 6276818), (58, 4328840), (62, 4049560), (80, 3138409), (116, 2164420), (124, 2024780), (145, 1731536), (155, 1619824), (232, 1082210), (248, 1012390), (290, 865768), (310, 809912), (464, 541105), (496, 506195), (580, 432884), (620, 404956), (899, 279280), (1160, 216442), (1240, 202478), (1798, 139640), (2320, 108221), (2480, 101239), (3491, 71920), (3596, 69820), (4495, 55856), (6982, 35960), (7192, 34910), (8990, 27928), (13964, 17980), (14384, 17455)]