160711640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{419}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 372556800

約数和(自身を除く): 211845160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 223, 344, 419, 430, 446, 838, 860, 892, 1115, 1676, 1720, 1784, 2095, 2230, 3352, 4190, 4460, 8380, 8920, 9589, 16760, 18017, 19178, 36034, 38356, 47945, 72068, 76712, 90085, 93437, 95890, 144136, 180170, 186874, 191780, 360340, 373748, 383560, 467185, 720680, 747496, 934370, 1868740, 3737480, 4017791, 8035582, 16071164, 20088955, 32142328, 40177910, 80355820, 160711640]

約数ペア:

[(1, 160711640), (2, 80355820), (4, 40177910), (5, 32142328), (8, 20088955), (10, 16071164), (20, 8035582), (40, 4017791), (43, 3737480), (86, 1868740), (172, 934370), (215, 747496), (223, 720680), (344, 467185), (419, 383560), (430, 373748), (446, 360340), (838, 191780), (860, 186874), (892, 180170), (1115, 144136), (1676, 95890), (1720, 93437), (1784, 90085), (2095, 76712), (2230, 72068), (3352, 47945), (4190, 38356), (4460, 36034), (8380, 19178), (8920, 18017), (9589, 16760)]