28543400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{3319}}^1$

素因数の和:3378

約数の個数: 48

約数和(自身を含む): 67927200

約数和(自身を除く): 39383800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 3319, 4300, 6638, 8600, 13276, 16595, 26552, 33190, 66380, 82975, 132760, 142717, 165950, 285434, 331900, 570868, 663800, 713585, 1141736, 1427170, 2854340, 3567925, 5708680, 7135850, 14271700, 28543400]

約数ペア:

[(1, 28543400), (2, 14271700), (4, 7135850), (5, 5708680), (8, 3567925), (10, 2854340), (20, 1427170), (25, 1141736), (40, 713585), (43, 663800), (50, 570868), (86, 331900), (100, 285434), (172, 165950), (200, 142717), (215, 132760), (344, 82975), (430, 66380), (860, 33190), (1075, 26552), (1720, 16595), (2150, 13276), (3319, 8600), (4300, 6638)]