9147920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2789}}^1$

素因数の和:2843

約数の個数: 40

約数和(自身を含む): 21795480

約数和(自身を除く): 12647560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 2789, 3280, 5578, 11156, 13945, 22312, 27890, 44624, 55780, 111560, 114349, 223120, 228698, 457396, 571745, 914792, 1143490, 1829584, 2286980, 4573960, 9147920]

約数ペア:

[(1, 9147920), (2, 4573960), (4, 2286980), (5, 1829584), (8, 1143490), (10, 914792), (16, 571745), (20, 457396), (40, 228698), (41, 223120), (80, 114349), (82, 111560), (164, 55780), (205, 44624), (328, 27890), (410, 22312), (656, 13945), (820, 11156), (1640, 5578), (2789, 3280)]