489604505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{563}}^1\times {\mathrm{787}}^1$

素因数の和:1385

約数の個数: 32

約数和(自身を含む): 671981184

約数和(自身を除く): 182376679

約数列:

[1, 5, 13, 17, 65, 85, 221, 563, 787, 1105, 2815, 3935, 7319, 9571, 10231, 13379, 36595, 47855, 51155, 66895, 124423, 173927, 443081, 622115, 869635, 2215405, 5760053, 7532377, 28800265, 37661885, 97920901, 489604505]

約数ペア:

[(1, 489604505), (5, 97920901), (13, 37661885), (17, 28800265), (65, 7532377), (85, 5760053), (221, 2215405), (563, 869635), (787, 622115), (1105, 443081), (2815, 173927), (3935, 124423), (7319, 66895), (9571, 51155), (10231, 47855), (13379, 36595)]