209212465

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{10253}}^1$

素因数の和:10329

約数の個数: 32

約数和(自身を含む): 318940416

約数和(自身を除く): 109727951

約数列:

[1, 5, 7, 11, 35, 53, 55, 77, 265, 371, 385, 583, 1855, 2915, 4081, 10253, 20405, 51265, 71771, 112783, 358855, 543409, 563915, 789481, 2717045, 3803863, 3947405, 5977499, 19019315, 29887495, 41842493, 209212465]

約数ペア:

[(1, 209212465), (5, 41842493), (7, 29887495), (11, 19019315), (35, 5977499), (53, 3947405), (55, 3803863), (77, 2717045), (265, 789481), (371, 563915), (385, 543409), (583, 358855), (1855, 112783), (2915, 71771), (4081, 51265), (10253, 20405)]