38485000

素因数分解:

$2^3\times 5^4\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 92782800

約数和(自身を除く): 54297800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 125, 172, 179, 200, 215, 250, 344, 358, 430, 500, 625, 716, 860, 895, 1000, 1075, 1250, 1432, 1720, 1790, 2150, 2500, 3580, 4300, 4475, 5000, 5375, 7160, 7697, 8600, 8950, 10750, 15394, 17900, 21500, 22375, 26875, 30788, 35800, 38485, 43000, 44750, 53750, 61576, 76970, 89500, 107500, 111875, 153940, 179000, 192425, 215000, 223750, 307880, 384850, 447500, 769700, 895000, 962125, 1539400, 1924250, 3848500, 4810625, 7697000, 9621250, 19242500, 38485000]

約数ペア:

[(1, 38485000), (2, 19242500), (4, 9621250), (5, 7697000), (8, 4810625), (10, 3848500), (20, 1924250), (25, 1539400), (40, 962125), (43, 895000), (50, 769700), (86, 447500), (100, 384850), (125, 307880), (172, 223750), (179, 215000), (200, 192425), (215, 179000), (250, 153940), (344, 111875), (358, 107500), (430, 89500), (500, 76970), (625, 61576), (716, 53750), (860, 44750), (895, 43000), (1000, 38485), (1075, 35800), (1250, 30788), (1432, 26875), (1720, 22375), (1790, 21500), (2150, 17900), (2500, 15394), (3580, 10750), (4300, 8950), (4475, 8600), (5000, 7697), (5375, 7160)]