189847540

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{587}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 405804672

約数和(自身を除く): 215957132

約数列:

[1, 2, 4, 5, 10, 20, 103, 157, 206, 314, 412, 515, 587, 628, 785, 1030, 1174, 1570, 2060, 2348, 2935, 3140, 5870, 11740, 16171, 32342, 60461, 64684, 80855, 92159, 120922, 161710, 184318, 241844, 302305, 323420, 368636, 460795, 604610, 921590, 1209220, 1843180, 9492377, 18984754, 37969508, 47461885, 94923770, 189847540]

約数ペア:

[(1, 189847540), (2, 94923770), (4, 47461885), (5, 37969508), (10, 18984754), (20, 9492377), (103, 1843180), (157, 1209220), (206, 921590), (314, 604610), (412, 460795), (515, 368636), (587, 323420), (628, 302305), (785, 241844), (1030, 184318), (1174, 161710), (1570, 120922), (2060, 92159), (2348, 80855), (2935, 64684), (3140, 60461), (5870, 32342), (11740, 16171)]