12228400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1609}}^1$

素因数の和:1646

約数の個数: 60

約数和(自身を含む): 30944200

約数和(自身を除く): 18715800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1609, 1900, 3218, 3800, 6436, 7600, 8045, 12872, 16090, 25744, 30571, 32180, 40225, 61142, 64360, 80450, 122284, 128720, 152855, 160900, 244568, 305710, 321800, 489136, 611420, 643600, 764275, 1222840, 1528550, 2445680, 3057100, 6114200, 12228400]

約数ペア:

[(1, 12228400), (2, 6114200), (4, 3057100), (5, 2445680), (8, 1528550), (10, 1222840), (16, 764275), (19, 643600), (20, 611420), (25, 489136), (38, 321800), (40, 305710), (50, 244568), (76, 160900), (80, 152855), (95, 128720), (100, 122284), (152, 80450), (190, 64360), (200, 61142), (304, 40225), (380, 32180), (400, 30571), (475, 25744), (760, 16090), (950, 12872), (1520, 8045), (1609, 7600), (1900, 6436), (3218, 3800)]