253668280

素因数分解:

$2^3\times 5^1\times {\mathrm{977}}^1\times {\mathrm{6491}}^1$

素因数の和:7479

約数の個数: 32

約数和(自身を含む): 571425840

約数和(自身を除く): 317757560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 977, 1954, 3908, 4885, 6491, 7816, 9770, 12982, 19540, 25964, 32455, 39080, 51928, 64910, 129820, 259640, 6341707, 12683414, 25366828, 31708535, 50733656, 63417070, 126834140, 253668280]

約数ペア:

[(1, 253668280), (2, 126834140), (4, 63417070), (5, 50733656), (8, 31708535), (10, 25366828), (20, 12683414), (40, 6341707), (977, 259640), (1954, 129820), (3908, 64910), (4885, 51928), (6491, 39080), (7816, 32455), (9770, 25964), (12982, 19540)]