19848800

素因数分解:

$2^5\times 5^2\times {\mathrm{43}}^1\times {\mathrm{577}}^1$

素因数の和:640

約数の個数: 72

約数和(自身を含む): 49668696

約数和(自身を除く): 29819896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 80, 86, 100, 160, 172, 200, 215, 344, 400, 430, 577, 688, 800, 860, 1075, 1154, 1376, 1720, 2150, 2308, 2885, 3440, 4300, 4616, 5770, 6880, 8600, 9232, 11540, 14425, 17200, 18464, 23080, 24811, 28850, 34400, 46160, 49622, 57700, 92320, 99244, 115400, 124055, 198488, 230800, 248110, 396976, 461600, 496220, 620275, 793952, 992440, 1240550, 1984880, 2481100, 3969760, 4962200, 9924400, 19848800]

約数ペア:

[(1, 19848800), (2, 9924400), (4, 4962200), (5, 3969760), (8, 2481100), (10, 1984880), (16, 1240550), (20, 992440), (25, 793952), (32, 620275), (40, 496220), (43, 461600), (50, 396976), (80, 248110), (86, 230800), (100, 198488), (160, 124055), (172, 115400), (200, 99244), (215, 92320), (344, 57700), (400, 49622), (430, 46160), (577, 34400), (688, 28850), (800, 24811), (860, 23080), (1075, 18464), (1154, 17200), (1376, 14425), (1720, 11540), (2150, 9232), (2308, 8600), (2885, 6880), (3440, 5770), (4300, 4616)]