79664000

素因数分解:

$2^7\times 5^3\times {\mathrm{13}}^1\times {\mathrm{383}}^1$

素因数の和:425

約数の個数: 128

約数和(自身を含む): 213857280

約数和(自身を除く): 134193280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 128, 130, 160, 200, 208, 250, 260, 320, 325, 383, 400, 416, 500, 520, 640, 650, 766, 800, 832, 1000, 1040, 1300, 1532, 1600, 1625, 1664, 1915, 2000, 2080, 2600, 3064, 3200, 3250, 3830, 4000, 4160, 4979, 5200, 6128, 6500, 7660, 8000, 8320, 9575, 9958, 10400, 12256, 13000, 15320, 16000, 19150, 19916, 20800, 24512, 24895, 26000, 30640, 38300, 39832, 41600, 47875, 49024, 49790, 52000, 61280, 76600, 79664, 95750, 99580, 104000, 122560, 124475, 153200, 159328, 191500, 199160, 208000, 245120, 248950, 306400, 318656, 383000, 398320, 497900, 612800, 622375, 637312, 766000, 796640, 995800, 1225600, 1244750, 1532000, 1593280, 1991600, 2489500, 3064000, 3186560, 3983200, 4979000, 6128000, 7966400, 9958000, 15932800, 19916000, 39832000, 79664000]

約数ペア:

[(1, 79664000), (2, 39832000), (4, 19916000), (5, 15932800), (8, 9958000), (10, 7966400), (13, 6128000), (16, 4979000), (20, 3983200), (25, 3186560), (26, 3064000), (32, 2489500), (40, 1991600), (50, 1593280), (52, 1532000), (64, 1244750), (65, 1225600), (80, 995800), (100, 796640), (104, 766000), (125, 637312), (128, 622375), (130, 612800), (160, 497900), (200, 398320), (208, 383000), (250, 318656), (260, 306400), (320, 248950), (325, 245120), (383, 208000), (400, 199160), (416, 191500), (500, 159328), (520, 153200), (640, 124475), (650, 122560), (766, 104000), (800, 99580), (832, 95750), (1000, 79664), (1040, 76600), (1300, 61280), (1532, 52000), (1600, 49790), (1625, 49024), (1664, 47875), (1915, 41600), (2000, 39832), (2080, 38300), (2600, 30640), (3064, 26000), (3200, 24895), (3250, 24512), (3830, 20800), (4000, 19916), (4160, 19150), (4979, 16000), (5200, 15320), (6128, 13000), (6500, 12256), (7660, 10400), (8000, 9958), (8320, 9575)]