20306420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19157}}^1$

素因数の和:19219

約数の個数: 24

約数和(自身を含む): 43450344

約数和(自身を除く): 23143924

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19157, 38314, 76628, 95785, 191570, 383140, 1015321, 2030642, 4061284, 5076605, 10153210, 20306420]

約数ペア:

[(1, 20306420), (2, 10153210), (4, 5076605), (5, 4061284), (10, 2030642), (20, 1015321), (53, 383140), (106, 191570), (212, 95785), (265, 76628), (530, 38314), (1060, 19157)]