31051960

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 72576000

約数和(自身を除く): 41524040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 83, 94, 166, 188, 199, 235, 332, 376, 398, 415, 470, 664, 796, 830, 940, 995, 1592, 1660, 1880, 1990, 3320, 3901, 3980, 7802, 7960, 9353, 15604, 16517, 18706, 19505, 31208, 33034, 37412, 39010, 46765, 66068, 74824, 78020, 82585, 93530, 132136, 156040, 165170, 187060, 330340, 374120, 660680, 776299, 1552598, 3105196, 3881495, 6210392, 7762990, 15525980, 31051960]

約数ペア:

[(1, 31051960), (2, 15525980), (4, 7762990), (5, 6210392), (8, 3881495), (10, 3105196), (20, 1552598), (40, 776299), (47, 660680), (83, 374120), (94, 330340), (166, 187060), (188, 165170), (199, 156040), (235, 132136), (332, 93530), (376, 82585), (398, 78020), (415, 74824), (470, 66068), (664, 46765), (796, 39010), (830, 37412), (940, 33034), (995, 31208), (1592, 19505), (1660, 18706), (1880, 16517), (1990, 15604), (3320, 9353), (3901, 7960), (3980, 7802)]