215920390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1289}}^1\times {\mathrm{2393}}^1$

素因数の和:3696

約数の個数: 32

約数和(自身を含む): 444709440

約数和(自身を除く): 228789050

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1289, 2393, 2578, 4786, 6445, 9023, 11965, 12890, 16751, 18046, 23930, 33502, 45115, 83755, 90230, 167510, 3084577, 6169154, 15422885, 21592039, 30845770, 43184078, 107960195, 215920390]

約数ペア:

[(1, 215920390), (2, 107960195), (5, 43184078), (7, 30845770), (10, 21592039), (14, 15422885), (35, 6169154), (70, 3084577), (1289, 167510), (2393, 90230), (2578, 83755), (4786, 45115), (6445, 33502), (9023, 23930), (11965, 18046), (12890, 16751)]