156720680

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{38039}}^1$

素因数の和:38153

約数の個数: 32

約数和(自身を含む): 356054400

約数和(自身を除く): 199333720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 38039, 76078, 152156, 190195, 304312, 380390, 760780, 1521560, 3918017, 7836034, 15672068, 19590085, 31344136, 39180170, 78360340, 156720680]

約数ペア:

[(1, 156720680), (2, 78360340), (4, 39180170), (5, 31344136), (8, 19590085), (10, 15672068), (20, 7836034), (40, 3918017), (103, 1521560), (206, 760780), (412, 380390), (515, 304312), (824, 190195), (1030, 152156), (2060, 76078), (4120, 38039)]