218522025

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{13679}}^1$

素因数の和:13766

約数の個数: 36

約数和(自身を含む): 396938880

約数和(自身を除く): 178416855

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 639, 1065, 1775, 3195, 5325, 13679, 15975, 41037, 68395, 123111, 205185, 341975, 615555, 971209, 1025925, 2913627, 3077775, 4856045, 8740881, 14568135, 24280225, 43704405, 72840675, 218522025]

約数ペア:

[(1, 218522025), (3, 72840675), (5, 43704405), (9, 24280225), (15, 14568135), (25, 8740881), (45, 4856045), (71, 3077775), (75, 2913627), (213, 1025925), (225, 971209), (355, 615555), (639, 341975), (1065, 205185), (1775, 123111), (3195, 68395), (5325, 41037), (13679, 15975)]