9780645

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{1901}}^1$

素因数の和:1930

約数の個数: 32

約数和(自身を含む): 18259200

約数和(自身を除く): 8478555

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 1901, 5145, 5703, 9505, 13307, 28515, 39921, 66535, 93149, 199605, 279447, 465745, 652043, 1397235, 1956129, 3260215, 9780645]

約数ペア:

[(1, 9780645), (3, 3260215), (5, 1956129), (7, 1397235), (15, 652043), (21, 465745), (35, 279447), (49, 199605), (105, 93149), (147, 66535), (245, 39921), (343, 28515), (735, 13307), (1029, 9505), (1715, 5703), (1901, 5145)]