219841780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{30449}}^1$

素因数の和:30496

約数の個数: 36

約数和(自身を含む): 487260900

約数和(自身を除く): 267419120

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 30449, 60898, 121796, 152245, 304490, 578531, 608980, 1157062, 2314124, 2892655, 5785310, 10992089, 11570620, 21984178, 43968356, 54960445, 109920890, 219841780]

約数ペア:

[(1, 219841780), (2, 109920890), (4, 54960445), (5, 43968356), (10, 21984178), (19, 11570620), (20, 10992089), (38, 5785310), (76, 2892655), (95, 2314124), (190, 1157062), (361, 608980), (380, 578531), (722, 304490), (1444, 152245), (1805, 121796), (3610, 60898), (7220, 30449)]