21844400

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{563}}^1$

素因数の和:678

約数の個数: 60

約数和(自身を含む): 53116392

約数和(自身を除く): 31271992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 194, 200, 388, 400, 485, 563, 776, 970, 1126, 1552, 1940, 2252, 2425, 2815, 3880, 4504, 4850, 5630, 7760, 9008, 9700, 11260, 14075, 19400, 22520, 28150, 38800, 45040, 54611, 56300, 109222, 112600, 218444, 225200, 273055, 436888, 546110, 873776, 1092220, 1365275, 2184440, 2730550, 4368880, 5461100, 10922200, 21844400]

約数ペア:

[(1, 21844400), (2, 10922200), (4, 5461100), (5, 4368880), (8, 2730550), (10, 2184440), (16, 1365275), (20, 1092220), (25, 873776), (40, 546110), (50, 436888), (80, 273055), (97, 225200), (100, 218444), (194, 112600), (200, 109222), (388, 56300), (400, 54611), (485, 45040), (563, 38800), (776, 28150), (970, 22520), (1126, 19400), (1552, 14075), (1940, 11260), (2252, 9700), (2425, 9008), (2815, 7760), (3880, 5630), (4504, 4850)]