217874890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{16223}}^1$

素因数の和:16326

約数の個数: 32

約数和(自身を含む): 420526080

約数和(自身を除く): 202651190

約数列:

[1, 2, 5, 10, 17, 34, 79, 85, 158, 170, 395, 790, 1343, 2686, 6715, 13430, 16223, 32446, 81115, 162230, 275791, 551582, 1281617, 1378955, 2563234, 2757910, 6408085, 12816170, 21787489, 43574978, 108937445, 217874890]

約数ペア:

[(1, 217874890), (2, 108937445), (5, 43574978), (10, 21787489), (17, 12816170), (34, 6408085), (79, 2757910), (85, 2563234), (158, 1378955), (170, 1281617), (395, 551582), (790, 275791), (1343, 162230), (2686, 81115), (6715, 32446), (13430, 16223)]