2017227920

素因数分解:

$2^4\times 5^1\times {\mathrm{2789}}^1\times {\mathrm{9041}}^1$

素因数の和:11843

約数の個数: 40

約数和(自身を含む): 4692255480

約数和(自身を除く): 2675027560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2789, 5578, 9041, 11156, 13945, 18082, 22312, 27890, 36164, 44624, 45205, 55780, 72328, 90410, 111560, 144656, 180820, 223120, 361640, 723280, 25215349, 50430698, 100861396, 126076745, 201722792, 252153490, 403445584, 504306980, 1008613960, 2017227920]

約数ペア:

[(1, 2017227920), (2, 1008613960), (4, 504306980), (5, 403445584), (8, 252153490), (10, 201722792), (16, 126076745), (20, 100861396), (40, 50430698), (80, 25215349), (2789, 723280), (5578, 361640), (9041, 223120), (11156, 180820), (13945, 144656), (18082, 111560), (22312, 90410), (27890, 72328), (36164, 55780), (44624, 45205)]