20819216

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4079}}^1$

素因数の和:4127

約数の個数: 40

約数和(自身を含む): 45532800

約数和(自身を除く): 24713584

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 44, 58, 88, 116, 176, 232, 319, 464, 638, 1276, 2552, 4079, 5104, 8158, 16316, 32632, 44869, 65264, 89738, 118291, 179476, 236582, 358952, 473164, 717904, 946328, 1301201, 1892656, 2602402, 5204804, 10409608, 20819216]

約数ペア:

[(1, 20819216), (2, 10409608), (4, 5204804), (8, 2602402), (11, 1892656), (16, 1301201), (22, 946328), (29, 717904), (44, 473164), (58, 358952), (88, 236582), (116, 179476), (176, 118291), (232, 89738), (319, 65264), (464, 44869), (638, 32632), (1276, 16316), (2552, 8158), (4079, 5104)]