28258790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:693

約数の個数: 48

約数和(自身を含む): 59860944

約数和(自身を除く): 31602154

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 101, 202, 245, 490, 505, 571, 707, 1010, 1142, 1414, 2855, 3535, 3997, 4949, 5710, 7070, 7994, 9898, 19985, 24745, 27979, 39970, 49490, 55958, 57671, 115342, 139895, 279790, 288355, 403697, 576710, 807394, 2018485, 2825879, 4036970, 5651758, 14129395, 28258790]

約数ペア:

[(1, 28258790), (2, 14129395), (5, 5651758), (7, 4036970), (10, 2825879), (14, 2018485), (35, 807394), (49, 576710), (70, 403697), (98, 288355), (101, 279790), (202, 139895), (245, 115342), (490, 57671), (505, 55958), (571, 49490), (707, 39970), (1010, 27979), (1142, 24745), (1414, 19985), (2855, 9898), (3535, 7994), (3997, 7070), (4949, 5710)]