20778690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1213}}^1$

素因数の和:1794

約数の個数: 32

約数和(自身を含む): 49997376

約数和(自身を除く): 29218686

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 571, 1142, 1213, 1713, 2426, 2855, 3426, 3639, 5710, 6065, 7278, 8565, 12130, 17130, 18195, 36390, 692623, 1385246, 2077869, 3463115, 4155738, 6926230, 10389345, 20778690]

約数ペア:

[(1, 20778690), (2, 10389345), (3, 6926230), (5, 4155738), (6, 3463115), (10, 2077869), (15, 1385246), (30, 692623), (571, 36390), (1142, 18195), (1213, 17130), (1713, 12130), (2426, 8565), (2855, 7278), (3426, 6065), (3639, 5710)]