40805540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1471}}^1$

素因数の和:1572

約数の個数: 48

約数和(自身を含む): 91499520

約数和(自身を除く): 50693980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 730, 1387, 1460, 1471, 2774, 2942, 5548, 5884, 6935, 7355, 13870, 14710, 27740, 27949, 29420, 55898, 107383, 111796, 139745, 214766, 279490, 429532, 536915, 558980, 1073830, 2040277, 2147660, 4080554, 8161108, 10201385, 20402770, 40805540]

約数ペア:

[(1, 40805540), (2, 20402770), (4, 10201385), (5, 8161108), (10, 4080554), (19, 2147660), (20, 2040277), (38, 1073830), (73, 558980), (76, 536915), (95, 429532), (146, 279490), (190, 214766), (292, 139745), (365, 111796), (380, 107383), (730, 55898), (1387, 29420), (1460, 27949), (1471, 27740), (2774, 14710), (2942, 13870), (5548, 7355), (5884, 6935)]