1285686500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{97}}^1\times {\mathrm{541}}^1$

素因数の和:671

約数の個数: 144

約数和(自身を含む): 3306152304

約数和(自身を除く): 2020465804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 97, 98, 100, 125, 140, 175, 194, 196, 245, 250, 350, 388, 485, 490, 500, 541, 679, 700, 875, 970, 980, 1082, 1225, 1358, 1750, 1940, 2164, 2425, 2450, 2705, 2716, 3395, 3500, 3787, 4753, 4850, 4900, 5410, 6125, 6790, 7574, 9506, 9700, 10820, 12125, 12250, 13525, 13580, 15148, 16975, 18935, 19012, 23765, 24250, 24500, 26509, 27050, 33950, 37870, 47530, 48500, 52477, 53018, 54100, 67625, 67900, 75740, 84875, 94675, 95060, 104954, 106036, 118825, 132545, 135250, 169750, 189350, 209908, 237650, 262385, 265090, 270500, 339500, 367339, 378700, 473375, 475300, 524770, 530180, 594125, 662725, 734678, 946750, 1049540, 1188250, 1311925, 1325450, 1469356, 1836695, 1893500, 2376500, 2571373, 2623850, 2650900, 3313625, 3673390, 5142746, 5247700, 6559625, 6627250, 7346780, 9183475, 10285492, 12856865, 13119250, 13254500, 18366950, 25713730, 26238500, 36733900, 45917375, 51427460, 64284325, 91834750, 128568650, 183669500, 257137300, 321421625, 642843250, 1285686500]

約数ペア:

[(1, 1285686500), (2, 642843250), (4, 321421625), (5, 257137300), (7, 183669500), (10, 128568650), (14, 91834750), (20, 64284325), (25, 51427460), (28, 45917375), (35, 36733900), (49, 26238500), (50, 25713730), (70, 18366950), (97, 13254500), (98, 13119250), (100, 12856865), (125, 10285492), (140, 9183475), (175, 7346780), (194, 6627250), (196, 6559625), (245, 5247700), (250, 5142746), (350, 3673390), (388, 3313625), (485, 2650900), (490, 2623850), (500, 2571373), (541, 2376500), (679, 1893500), (700, 1836695), (875, 1469356), (970, 1325450), (980, 1311925), (1082, 1188250), (1225, 1049540), (1358, 946750), (1750, 734678), (1940, 662725), (2164, 594125), (2425, 530180), (2450, 524770), (2705, 475300), (2716, 473375), (3395, 378700), (3500, 367339), (3787, 339500), (4753, 270500), (4850, 265090), (4900, 262385), (5410, 237650), (6125, 209908), (6790, 189350), (7574, 169750), (9506, 135250), (9700, 132545), (10820, 118825), (12125, 106036), (12250, 104954), (13525, 95060), (13580, 94675), (15148, 84875), (16975, 75740), (18935, 67900), (19012, 67625), (23765, 54100), (24250, 53018), (24500, 52477), (26509, 48500), (27050, 47530), (33950, 37870)]