201679420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{165311}}^1$

素因数の和:165381

約数の個数: 24

約数和(自身を含む): 430472448

約数和(自身を除く): 228793028

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 165311, 330622, 661244, 826555, 1653110, 3306220, 10083971, 20167942, 40335884, 50419855, 100839710, 201679420]

約数ペア:

[(1, 201679420), (2, 100839710), (4, 50419855), (5, 40335884), (10, 20167942), (20, 10083971), (61, 3306220), (122, 1653110), (244, 826555), (305, 661244), (610, 330622), (1220, 165311)]