19715500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:200

約数の個数: 96

約数和(自身を含む): 50738688

約数和(自身を除く): 31023188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 43, 50, 70, 86, 100, 125, 131, 140, 172, 175, 215, 250, 262, 301, 350, 430, 500, 524, 602, 655, 700, 860, 875, 917, 1075, 1204, 1310, 1505, 1750, 1834, 2150, 2620, 3010, 3275, 3500, 3668, 4300, 4585, 5375, 5633, 6020, 6550, 7525, 9170, 10750, 11266, 13100, 15050, 16375, 18340, 21500, 22532, 22925, 28165, 30100, 32750, 37625, 39431, 45850, 56330, 65500, 75250, 78862, 91700, 112660, 114625, 140825, 150500, 157724, 197155, 229250, 281650, 394310, 458500, 563300, 704125, 788620, 985775, 1408250, 1971550, 2816500, 3943100, 4928875, 9857750, 19715500]

約数ペア:

[(1, 19715500), (2, 9857750), (4, 4928875), (5, 3943100), (7, 2816500), (10, 1971550), (14, 1408250), (20, 985775), (25, 788620), (28, 704125), (35, 563300), (43, 458500), (50, 394310), (70, 281650), (86, 229250), (100, 197155), (125, 157724), (131, 150500), (140, 140825), (172, 114625), (175, 112660), (215, 91700), (250, 78862), (262, 75250), (301, 65500), (350, 56330), (430, 45850), (500, 39431), (524, 37625), (602, 32750), (655, 30100), (700, 28165), (860, 22925), (875, 22532), (917, 21500), (1075, 18340), (1204, 16375), (1310, 15050), (1505, 13100), (1750, 11266), (1834, 10750), (2150, 9170), (2620, 7525), (3010, 6550), (3275, 6020), (3500, 5633), (3668, 5375), (4300, 4585)]