388774420

素因数分解:

$2^2\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{15791}}^1$

素因数の和:17031

約数の個数: 24

約数和(自身を含む): 817141248

約数和(自身を除く): 428366828

約数列:

[1, 2, 4, 5, 10, 20, 1231, 2462, 4924, 6155, 12310, 15791, 24620, 31582, 63164, 78955, 157910, 315820, 19438721, 38877442, 77754884, 97193605, 194387210, 388774420]

約数ペア:

[(1, 388774420), (2, 194387210), (4, 97193605), (5, 77754884), (10, 38877442), (20, 19438721), (1231, 315820), (2462, 157910), (4924, 78955), (6155, 63164), (12310, 31582), (15791, 24620)]