20928540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2341}}^1$

素因数の和:2502

約数の個数: 48

約数和(自身を含む): 59018400

約数和(自身を除く): 38089860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 149, 298, 447, 596, 745, 894, 1490, 1788, 2235, 2341, 2980, 4470, 4682, 7023, 8940, 9364, 11705, 14046, 23410, 28092, 35115, 46820, 70230, 140460, 348809, 697618, 1046427, 1395236, 1744045, 2092854, 3488090, 4185708, 5232135, 6976180, 10464270, 20928540]

約数ペア:

[(1, 20928540), (2, 10464270), (3, 6976180), (4, 5232135), (5, 4185708), (6, 3488090), (10, 2092854), (12, 1744045), (15, 1395236), (20, 1046427), (30, 697618), (60, 348809), (149, 140460), (298, 70230), (447, 46820), (596, 35115), (745, 28092), (894, 23410), (1490, 14046), (1788, 11705), (2235, 9364), (2341, 8940), (2980, 7023), (4470, 4682)]