1680975

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:288

約数の個数: 36

約数和(自身を含む): 3120832

約数和(自身を除く): 1439857

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 225, 241, 279, 465, 723, 775, 1205, 1395, 2169, 2325, 3615, 6025, 6975, 7471, 10845, 18075, 22413, 37355, 54225, 67239, 112065, 186775, 336195, 560325, 1680975]

約数ペア:

[(1, 1680975), (3, 560325), (5, 336195), (9, 186775), (15, 112065), (25, 67239), (31, 54225), (45, 37355), (75, 22413), (93, 18075), (155, 10845), (225, 7471), (241, 6975), (279, 6025), (465, 3615), (723, 2325), (775, 2169), (1205, 1395)]