81678500

素因数分解:

$2^2\times 5^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 190270080

約数和(自身を除く): 108591580

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 43, 50, 58, 86, 100, 116, 125, 131, 145, 172, 215, 250, 262, 290, 430, 500, 524, 580, 655, 725, 860, 1075, 1247, 1310, 1450, 2150, 2494, 2620, 2900, 3275, 3625, 3799, 4300, 4988, 5375, 5633, 6235, 6550, 7250, 7598, 10750, 11266, 12470, 13100, 14500, 15196, 16375, 18995, 21500, 22532, 24940, 28165, 31175, 32750, 37990, 56330, 62350, 65500, 75980, 94975, 112660, 124700, 140825, 155875, 163357, 189950, 281650, 311750, 326714, 379900, 474875, 563300, 623500, 653428, 704125, 816785, 949750, 1408250, 1633570, 1899500, 2816500, 3267140, 4083925, 8167850, 16335700, 20419625, 40839250, 81678500]

約数ペア:

[(1, 81678500), (2, 40839250), (4, 20419625), (5, 16335700), (10, 8167850), (20, 4083925), (25, 3267140), (29, 2816500), (43, 1899500), (50, 1633570), (58, 1408250), (86, 949750), (100, 816785), (116, 704125), (125, 653428), (131, 623500), (145, 563300), (172, 474875), (215, 379900), (250, 326714), (262, 311750), (290, 281650), (430, 189950), (500, 163357), (524, 155875), (580, 140825), (655, 124700), (725, 112660), (860, 94975), (1075, 75980), (1247, 65500), (1310, 62350), (1450, 56330), (2150, 37990), (2494, 32750), (2620, 31175), (2900, 28165), (3275, 24940), (3625, 22532), (3799, 21500), (4300, 18995), (4988, 16375), (5375, 15196), (5633, 14500), (6235, 13100), (6550, 12470), (7250, 11266), (7598, 10750)]