208428222740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{983}}^1\times {\mathrm{557981}}^1$

素因数の和:558992

約数の個数: 48

約数和(自身を含む): 461205601920

約数和(自身を除く): 252777379180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 983, 1966, 3932, 4915, 9830, 18677, 19660, 37354, 74708, 93385, 186770, 373540, 557981, 1115962, 2231924, 2789905, 5579810, 10601639, 11159620, 21203278, 42406556, 53008195, 106016390, 212032780, 548495323, 1096990646, 2193981292, 2742476615, 5484953230, 10421411137, 10969906460, 20842822274, 41685644548, 52107055685, 104214111370, 208428222740]

約数ペア:

[(1, 208428222740), (2, 104214111370), (4, 52107055685), (5, 41685644548), (10, 20842822274), (19, 10969906460), (20, 10421411137), (38, 5484953230), (76, 2742476615), (95, 2193981292), (190, 1096990646), (380, 548495323), (983, 212032780), (1966, 106016390), (3932, 53008195), (4915, 42406556), (9830, 21203278), (18677, 11159620), (19660, 10601639), (37354, 5579810), (74708, 2789905), (93385, 2231924), (186770, 1115962), (373540, 557981)]