208403780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{42187}}^1$

素因数の和:42228

約数の個数: 48

約数和(自身を含む): 496130880

約数和(自身を除く): 287727100

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 42187, 84374, 168748, 210935, 421870, 548431, 801553, 843740, 1096862, 1603106, 2193724, 2742155, 3206212, 4007765, 5484310, 8015530, 10420189, 10968620, 16031060, 20840378, 41680756, 52100945, 104201890, 208403780]

約数ペア:

[(1, 208403780), (2, 104201890), (4, 52100945), (5, 41680756), (10, 20840378), (13, 16031060), (19, 10968620), (20, 10420189), (26, 8015530), (38, 5484310), (52, 4007765), (65, 3206212), (76, 2742155), (95, 2193724), (130, 1603106), (190, 1096862), (247, 843740), (260, 801553), (380, 548431), (494, 421870), (988, 210935), (1235, 168748), (2470, 84374), (4940, 42187)]