7807940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1297}}^1$

素因数の和:1356

約数の個数: 48

約数和(自身を含む): 19189632

約数和(自身を除く): 11381692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1297, 1505, 2594, 3010, 5188, 6020, 6485, 9079, 12970, 18158, 25940, 36316, 45395, 55771, 90790, 111542, 181580, 223084, 278855, 390397, 557710, 780794, 1115420, 1561588, 1951985, 3903970, 7807940]

約数ペア:

[(1, 7807940), (2, 3903970), (4, 1951985), (5, 1561588), (7, 1115420), (10, 780794), (14, 557710), (20, 390397), (28, 278855), (35, 223084), (43, 181580), (70, 111542), (86, 90790), (140, 55771), (172, 45395), (215, 36316), (301, 25940), (430, 18158), (602, 12970), (860, 9079), (1204, 6485), (1297, 6020), (1505, 5188), (2594, 3010)]