78844420

素因数分解:

$2^2\times 5^1\times {\mathrm{1627}}^1\times {\mathrm{2423}}^1$

素因数の和:4059

約数の個数: 24

約数和(自身を含む): 165743424

約数和(自身を除く): 86899004

約数列:

[1, 2, 4, 5, 10, 20, 1627, 2423, 3254, 4846, 6508, 8135, 9692, 12115, 16270, 24230, 32540, 48460, 3942221, 7884442, 15768884, 19711105, 39422210, 78844420]

約数ペア:

[(1, 78844420), (2, 39422210), (4, 19711105), (5, 15768884), (10, 7884442), (20, 3942221), (1627, 48460), (2423, 32540), (3254, 24230), (4846, 16270), (6508, 12115), (8135, 9692)]