187782980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{121937}}^1$

素因数の和:121964

約数の個数: 48

約数和(自身を含む): 491654016

約数和(自身を除く): 303871036

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 121937, 243874, 487748, 609685, 853559, 1219370, 1341307, 1707118, 2438740, 2682614, 3414236, 4267795, 5365228, 6706535, 8535590, 9389149, 13413070, 17071180, 18778298, 26826140, 37556596, 46945745, 93891490, 187782980]

約数ペア:

[(1, 187782980), (2, 93891490), (4, 46945745), (5, 37556596), (7, 26826140), (10, 18778298), (11, 17071180), (14, 13413070), (20, 9389149), (22, 8535590), (28, 6706535), (35, 5365228), (44, 4267795), (55, 3414236), (70, 2682614), (77, 2438740), (110, 1707118), (140, 1341307), (154, 1219370), (220, 853559), (308, 609685), (385, 487748), (770, 243874), (1540, 121937)]