77958640

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9461}}^1$

素因数の和:9577

約数の個数: 40

約数和(自身を含む): 183032928

約数和(自身を除く): 105074288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 9461, 18922, 37844, 47305, 75688, 94610, 151376, 189220, 378440, 756880, 974483, 1948966, 3897932, 4872415, 7795864, 9744830, 15591728, 19489660, 38979320, 77958640]

約数ペア:

[(1, 77958640), (2, 38979320), (4, 19489660), (5, 15591728), (8, 9744830), (10, 7795864), (16, 4872415), (20, 3897932), (40, 1948966), (80, 974483), (103, 756880), (206, 378440), (412, 189220), (515, 151376), (824, 94610), (1030, 75688), (1648, 47305), (2060, 37844), (4120, 18922), (8240, 9461)]