205370896

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{210421}}^1$

素因数の和:210490

約数の個数: 20

約数和(自身を含む): 404431084

約数和(自身を除く): 199060188

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 210421, 420842, 841684, 1683368, 3366736, 12835681, 25671362, 51342724, 102685448, 205370896]

約数ペア:

[(1, 205370896), (2, 102685448), (4, 51342724), (8, 25671362), (16, 12835681), (61, 3366736), (122, 1683368), (244, 841684), (488, 420842), (976, 210421)]