128860000

素因数分解:

$2^5\times 5^4\times {\mathrm{17}}^1\times {\mathrm{379}}^1$

素因数の和:426

約数の個数: 120

約数和(自身を含む): 336548520

約数和(自身を除く): 207688520

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 125, 136, 160, 170, 200, 250, 272, 340, 379, 400, 425, 500, 544, 625, 680, 758, 800, 850, 1000, 1250, 1360, 1516, 1700, 1895, 2000, 2125, 2500, 2720, 3032, 3400, 3790, 4000, 4250, 5000, 6064, 6443, 6800, 7580, 8500, 9475, 10000, 10625, 12128, 12886, 13600, 15160, 17000, 18950, 20000, 21250, 25772, 30320, 32215, 34000, 37900, 42500, 47375, 51544, 60640, 64430, 68000, 75800, 85000, 94750, 103088, 128860, 151600, 161075, 170000, 189500, 206176, 236875, 257720, 303200, 322150, 340000, 379000, 473750, 515440, 644300, 758000, 805375, 947500, 1030880, 1288600, 1516000, 1610750, 1895000, 2577200, 3221500, 3790000, 4026875, 5154400, 6443000, 7580000, 8053750, 12886000, 16107500, 25772000, 32215000, 64430000, 128860000]

約数ペア:

[(1, 128860000), (2, 64430000), (4, 32215000), (5, 25772000), (8, 16107500), (10, 12886000), (16, 8053750), (17, 7580000), (20, 6443000), (25, 5154400), (32, 4026875), (34, 3790000), (40, 3221500), (50, 2577200), (68, 1895000), (80, 1610750), (85, 1516000), (100, 1288600), (125, 1030880), (136, 947500), (160, 805375), (170, 758000), (200, 644300), (250, 515440), (272, 473750), (340, 379000), (379, 340000), (400, 322150), (425, 303200), (500, 257720), (544, 236875), (625, 206176), (680, 189500), (758, 170000), (800, 161075), (850, 151600), (1000, 128860), (1250, 103088), (1360, 94750), (1516, 85000), (1700, 75800), (1895, 68000), (2000, 64430), (2125, 60640), (2500, 51544), (2720, 47375), (3032, 42500), (3400, 37900), (3790, 34000), (4000, 32215), (4250, 30320), (5000, 25772), (6064, 21250), (6443, 20000), (6800, 18950), (7580, 17000), (8500, 15160), (9475, 13600), (10000, 12886), (10625, 12128)]