7201640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 17107200

約数和(自身を除く): 9905560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 79, 86, 106, 158, 172, 212, 215, 265, 316, 344, 395, 424, 430, 530, 632, 790, 860, 1060, 1580, 1720, 2120, 2279, 3160, 3397, 4187, 4558, 6794, 8374, 9116, 11395, 13588, 16748, 16985, 18232, 20935, 22790, 27176, 33496, 33970, 41870, 45580, 67940, 83740, 91160, 135880, 167480, 180041, 360082, 720164, 900205, 1440328, 1800410, 3600820, 7201640]

約数ペア:

[(1, 7201640), (2, 3600820), (4, 1800410), (5, 1440328), (8, 900205), (10, 720164), (20, 360082), (40, 180041), (43, 167480), (53, 135880), (79, 91160), (86, 83740), (106, 67940), (158, 45580), (172, 41870), (212, 33970), (215, 33496), (265, 27176), (316, 22790), (344, 20935), (395, 18232), (424, 16985), (430, 16748), (530, 13588), (632, 11395), (790, 9116), (860, 8374), (1060, 6794), (1580, 4558), (1720, 4187), (2120, 3397), (2279, 3160)]