221964825

素因数分解:

$3^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 375350976

約数和(自身を除く): 153386151

約数列:

[1, 3, 5, 15, 25, 75, 83, 181, 197, 249, 415, 543, 591, 905, 985, 1245, 2075, 2715, 2955, 4525, 4925, 6225, 13575, 14775, 15023, 16351, 35657, 45069, 49053, 75115, 81755, 106971, 178285, 225345, 245265, 375575, 408775, 534855, 891425, 1126725, 1226325, 2674275, 2959531, 8878593, 14797655, 44392965, 73988275, 221964825]

約数ペア:

[(1, 221964825), (3, 73988275), (5, 44392965), (15, 14797655), (25, 8878593), (75, 2959531), (83, 2674275), (181, 1226325), (197, 1126725), (249, 891425), (415, 534855), (543, 408775), (591, 375575), (905, 245265), (985, 225345), (1245, 178285), (2075, 106971), (2715, 81755), (2955, 75115), (4525, 49053), (4925, 45069), (6225, 35657), (13575, 16351), (14775, 15023)]