90258140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{644701}}^1$

素因数の和:644717

約数の個数: 24

約数和(自身を含む): 216619872

約数和(自身を除く): 126361732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 644701, 1289402, 2578804, 3223505, 4512907, 6447010, 9025814, 12894020, 18051628, 22564535, 45129070, 90258140]

約数ペア:

[(1, 90258140), (2, 45129070), (4, 22564535), (5, 18051628), (7, 12894020), (10, 9025814), (14, 6447010), (20, 4512907), (28, 3223505), (35, 2578804), (70, 1289402), (140, 644701)]