521080000

素因数分解:

$2^6\times 5^4\times 7^1\times {\mathrm{1861}}^1$

素因数の和:1900

約数の個数: 140

約数和(自身を含む): 1477489552

約数和(自身を除く): 956409552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 140, 160, 175, 200, 224, 250, 280, 320, 350, 400, 448, 500, 560, 625, 700, 800, 875, 1000, 1120, 1250, 1400, 1600, 1750, 1861, 2000, 2240, 2500, 2800, 3500, 3722, 4000, 4375, 5000, 5600, 7000, 7444, 8000, 8750, 9305, 10000, 11200, 13027, 14000, 14888, 17500, 18610, 20000, 26054, 28000, 29776, 35000, 37220, 40000, 46525, 52108, 56000, 59552, 65135, 70000, 74440, 93050, 104216, 119104, 130270, 140000, 148880, 186100, 208432, 232625, 260540, 280000, 297760, 325675, 372200, 416864, 465250, 521080, 595520, 651350, 744400, 833728, 930500, 1042160, 1163125, 1302700, 1488800, 1628375, 1861000, 2084320, 2326250, 2605400, 2977600, 3256750, 3722000, 4168640, 4652500, 5210800, 6513500, 7444000, 8141875, 9305000, 10421600, 13027000, 14888000, 16283750, 18610000, 20843200, 26054000, 32567500, 37220000, 52108000, 65135000, 74440000, 104216000, 130270000, 260540000, 521080000]

約数ペア:

[(1, 521080000), (2, 260540000), (4, 130270000), (5, 104216000), (7, 74440000), (8, 65135000), (10, 52108000), (14, 37220000), (16, 32567500), (20, 26054000), (25, 20843200), (28, 18610000), (32, 16283750), (35, 14888000), (40, 13027000), (50, 10421600), (56, 9305000), (64, 8141875), (70, 7444000), (80, 6513500), (100, 5210800), (112, 4652500), (125, 4168640), (140, 3722000), (160, 3256750), (175, 2977600), (200, 2605400), (224, 2326250), (250, 2084320), (280, 1861000), (320, 1628375), (350, 1488800), (400, 1302700), (448, 1163125), (500, 1042160), (560, 930500), (625, 833728), (700, 744400), (800, 651350), (875, 595520), (1000, 521080), (1120, 465250), (1250, 416864), (1400, 372200), (1600, 325675), (1750, 297760), (1861, 280000), (2000, 260540), (2240, 232625), (2500, 208432), (2800, 186100), (3500, 148880), (3722, 140000), (4000, 130270), (4375, 119104), (5000, 104216), (5600, 93050), (7000, 74440), (7444, 70000), (8000, 65135), (8750, 59552), (9305, 56000), (10000, 52108), (11200, 46525), (13027, 40000), (14000, 37220), (14888, 35000), (17500, 29776), (18610, 28000), (20000, 26054)]