81151850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6571}}^1$

素因数の和:6615

約数の個数: 48

約数和(自身を含む): 171134880

約数和(自身を除く): 89983030

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 130, 190, 247, 325, 475, 494, 650, 950, 1235, 2470, 6175, 6571, 12350, 13142, 32855, 65710, 85423, 124849, 164275, 170846, 249698, 328550, 427115, 624245, 854230, 1248490, 1623037, 2135575, 3121225, 3246074, 4271150, 6242450, 8115185, 16230370, 40575925, 81151850]

約数ペア:

[(1, 81151850), (2, 40575925), (5, 16230370), (10, 8115185), (13, 6242450), (19, 4271150), (25, 3246074), (26, 3121225), (38, 2135575), (50, 1623037), (65, 1248490), (95, 854230), (130, 624245), (190, 427115), (247, 328550), (325, 249698), (475, 170846), (494, 164275), (650, 124849), (950, 85423), (1235, 65710), (2470, 32855), (6175, 13142), (6571, 12350)]