1666520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 3816720

約数和(自身を除く): 2150200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 683, 1220, 1366, 2440, 2732, 3415, 5464, 6830, 13660, 27320, 41663, 83326, 166652, 208315, 333304, 416630, 833260, 1666520]

約数ペア:

[(1, 1666520), (2, 833260), (4, 416630), (5, 333304), (8, 208315), (10, 166652), (20, 83326), (40, 41663), (61, 27320), (122, 13660), (244, 6830), (305, 5464), (488, 3415), (610, 2732), (683, 2440), (1220, 1366)]