19212400

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1117}}^1$

素因数の和:1178

約数の個数: 60

約数和(自身を含む): 47273512

約数和(自身を除く): 28061112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 200, 215, 344, 400, 430, 688, 860, 1075, 1117, 1720, 2150, 2234, 3440, 4300, 4468, 5585, 8600, 8936, 11170, 17200, 17872, 22340, 27925, 44680, 48031, 55850, 89360, 96062, 111700, 192124, 223400, 240155, 384248, 446800, 480310, 768496, 960620, 1200775, 1921240, 2401550, 3842480, 4803100, 9606200, 19212400]

約数ペア:

[(1, 19212400), (2, 9606200), (4, 4803100), (5, 3842480), (8, 2401550), (10, 1921240), (16, 1200775), (20, 960620), (25, 768496), (40, 480310), (43, 446800), (50, 384248), (80, 240155), (86, 223400), (100, 192124), (172, 111700), (200, 96062), (215, 89360), (344, 55850), (400, 48031), (430, 44680), (688, 27925), (860, 22340), (1075, 17872), (1117, 17200), (1720, 11170), (2150, 8936), (2234, 8600), (3440, 5585), (4300, 4468)]