8327920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2539}}^1$

素因数の和:2593

約数の個数: 40

約数和(自身を含む): 19842480

約数和(自身を除く): 11514560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 2539, 3280, 5078, 10156, 12695, 20312, 25390, 40624, 50780, 101560, 104099, 203120, 208198, 416396, 520495, 832792, 1040990, 1665584, 2081980, 4163960, 8327920]

約数ペア:

[(1, 8327920), (2, 4163960), (4, 2081980), (5, 1665584), (8, 1040990), (10, 832792), (16, 520495), (20, 416396), (40, 208198), (41, 203120), (80, 104099), (82, 101560), (164, 50780), (205, 40624), (328, 25390), (410, 20312), (656, 12695), (820, 10156), (1640, 5078), (2539, 3280)]