9639920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2939}}^1$

素因数の和:2993

約数の個数: 40

約数和(自身を含む): 22967280

約数和(自身を除く): 13327360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 2939, 3280, 5878, 11756, 14695, 23512, 29390, 47024, 58780, 117560, 120499, 235120, 240998, 481996, 602495, 963992, 1204990, 1927984, 2409980, 4819960, 9639920]

約数ペア:

[(1, 9639920), (2, 4819960), (4, 2409980), (5, 1927984), (8, 1204990), (10, 963992), (16, 602495), (20, 481996), (40, 240998), (41, 235120), (80, 120499), (82, 117560), (164, 58780), (205, 47024), (328, 29390), (410, 23512), (656, 14695), (820, 11756), (1640, 5878), (2939, 3280)]