7973840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 21962880

約数和(自身を除く): 13989040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 491, 560, 580, 812, 982, 1015, 1160, 1624, 1964, 2030, 2320, 2455, 3248, 3437, 3928, 4060, 4910, 6874, 7856, 8120, 9820, 13748, 14239, 16240, 17185, 19640, 27496, 28478, 34370, 39280, 54992, 56956, 68740, 71195, 99673, 113912, 137480, 142390, 199346, 227824, 274960, 284780, 398692, 498365, 569560, 797384, 996730, 1139120, 1594768, 1993460, 3986920, 7973840]

約数ペア:

[(1, 7973840), (2, 3986920), (4, 1993460), (5, 1594768), (7, 1139120), (8, 996730), (10, 797384), (14, 569560), (16, 498365), (20, 398692), (28, 284780), (29, 274960), (35, 227824), (40, 199346), (56, 142390), (58, 137480), (70, 113912), (80, 99673), (112, 71195), (116, 68740), (140, 56956), (145, 54992), (203, 39280), (232, 34370), (280, 28478), (290, 27496), (406, 19640), (464, 17185), (491, 16240), (560, 14239), (580, 13748), (812, 9820), (982, 8120), (1015, 7856), (1160, 6874), (1624, 4910), (1964, 4060), (2030, 3928), (2320, 3437), (2455, 3248)]