19954460

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6121}}^1$

素因数の和:6293

約数の個数: 24

約数和(自身を含む): 42168336

約数和(自身を除く): 22213876

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 6121, 12242, 24484, 30605, 61210, 122420, 997723, 1995446, 3990892, 4988615, 9977230, 19954460]

約数ペア:

[(1, 19954460), (2, 9977230), (4, 4988615), (5, 3990892), (10, 1995446), (20, 997723), (163, 122420), (326, 61210), (652, 30605), (815, 24484), (1630, 12242), (3260, 6121)]