396021940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{5237}}^1$

素因数の和:5464

約数の個数: 48

約数和(自身を含む): 879984000

約数和(自身を除く): 483962060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 199, 380, 398, 796, 995, 1990, 3781, 3980, 5237, 7562, 10474, 15124, 18905, 20948, 26185, 37810, 52370, 75620, 99503, 104740, 199006, 398012, 497515, 995030, 1042163, 1990060, 2084326, 4168652, 5210815, 10421630, 19801097, 20843260, 39602194, 79204388, 99005485, 198010970, 396021940]

約数ペア:

[(1, 396021940), (2, 198010970), (4, 99005485), (5, 79204388), (10, 39602194), (19, 20843260), (20, 19801097), (38, 10421630), (76, 5210815), (95, 4168652), (190, 2084326), (199, 1990060), (380, 1042163), (398, 995030), (796, 497515), (995, 398012), (1990, 199006), (3781, 104740), (3980, 99503), (5237, 75620), (7562, 52370), (10474, 37810), (15124, 26185), (18905, 20948)]