12220400

素因数分解:

$2^4\times 5^2\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:378

約数の個数: 60

約数和(自身を含む): 29706432

約数和(自身を除く): 17486032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 137, 200, 223, 274, 400, 446, 548, 685, 892, 1096, 1115, 1370, 1784, 2192, 2230, 2740, 3425, 3568, 4460, 5480, 5575, 6850, 8920, 10960, 11150, 13700, 17840, 22300, 27400, 30551, 44600, 54800, 61102, 89200, 122204, 152755, 244408, 305510, 488816, 611020, 763775, 1222040, 1527550, 2444080, 3055100, 6110200, 12220400]

約数ペア:

[(1, 12220400), (2, 6110200), (4, 3055100), (5, 2444080), (8, 1527550), (10, 1222040), (16, 763775), (20, 611020), (25, 488816), (40, 305510), (50, 244408), (80, 152755), (100, 122204), (137, 89200), (200, 61102), (223, 54800), (274, 44600), (400, 30551), (446, 27400), (548, 22300), (685, 17840), (892, 13700), (1096, 11150), (1115, 10960), (1370, 8920), (1784, 6850), (2192, 5575), (2230, 5480), (2740, 4460), (3425, 3568)]