28220815

素因数分解:

$5^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{503}}^1$

素因数の和:751

約数の個数: 24

約数和(自身を含む): 39644640

約数和(自身を除く): 11423825

約数列:

[1, 5, 7, 35, 49, 229, 245, 503, 1145, 1603, 2515, 3521, 8015, 11221, 17605, 24647, 56105, 115187, 123235, 575935, 806309, 4031545, 5644163, 28220815]

約数ペア:

[(1, 28220815), (5, 5644163), (7, 4031545), (35, 806309), (49, 575935), (229, 123235), (245, 115187), (503, 56105), (1145, 24647), (1603, 17605), (2515, 11221), (3521, 8015)]