20115928

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4547}}^1$

素因数の和:4639

約数の個数: 32

約数和(自身を含む): 43660800

約数和(自身を除く): 23544872

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 158, 316, 553, 632, 1106, 2212, 4424, 4547, 9094, 18188, 31829, 36376, 63658, 127316, 254632, 359213, 718426, 1436852, 2514491, 2873704, 5028982, 10057964, 20115928]

約数ペア:

[(1, 20115928), (2, 10057964), (4, 5028982), (7, 2873704), (8, 2514491), (14, 1436852), (28, 718426), (56, 359213), (79, 254632), (158, 127316), (316, 63658), (553, 36376), (632, 31829), (1106, 18188), (2212, 9094), (4424, 4547)]