20184850

素因数分解:

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

素因数の和:691

約数の個数: 48

約数和(自身を含む): 43407936

約数和(自身を除く): 23223086

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 101, 175, 202, 350, 505, 571, 707, 1010, 1142, 1414, 2525, 2855, 3535, 3997, 5050, 5710, 7070, 7994, 14275, 17675, 19985, 28550, 35350, 39970, 57671, 99925, 115342, 199850, 288355, 403697, 576710, 807394, 1441775, 2018485, 2883550, 4036970, 10092425, 20184850]

約数ペア:

[(1, 20184850), (2, 10092425), (5, 4036970), (7, 2883550), (10, 2018485), (14, 1441775), (25, 807394), (35, 576710), (50, 403697), (70, 288355), (101, 199850), (175, 115342), (202, 99925), (350, 57671), (505, 39970), (571, 35350), (707, 28550), (1010, 19985), (1142, 17675), (1414, 14275), (2525, 7994), (2855, 7070), (3535, 5710), (3997, 5050)]