21289432000

素因数分解:

$2^6\times 5^3\times {\mathrm{541}}^1\times {\mathrm{4919}}^1$

素因数の和:5487

約数の個数: 112

約数和(自身を含む): 52831471680

約数和(自身を除く): 31542039680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 541, 800, 1000, 1082, 1600, 2000, 2164, 2705, 4000, 4328, 4919, 5410, 8000, 8656, 9838, 10820, 13525, 17312, 19676, 21640, 24595, 27050, 34624, 39352, 43280, 49190, 54100, 67625, 78704, 86560, 98380, 108200, 122975, 135250, 157408, 173120, 196760, 216400, 245950, 270500, 314816, 393520, 432800, 491900, 541000, 614875, 787040, 865600, 983800, 1082000, 1229750, 1574080, 1967600, 2164000, 2459500, 2661179, 3935200, 4328000, 4919000, 5322358, 7870400, 9838000, 10644716, 13305895, 19676000, 21289432, 26611790, 39352000, 42578864, 53223580, 66529475, 85157728, 106447160, 133058950, 170315456, 212894320, 266117900, 332647375, 425788640, 532235800, 665294750, 851577280, 1064471600, 1330589500, 2128943200, 2661179000, 4257886400, 5322358000, 10644716000, 21289432000]

約数ペア:

[(1, 21289432000), (2, 10644716000), (4, 5322358000), (5, 4257886400), (8, 2661179000), (10, 2128943200), (16, 1330589500), (20, 1064471600), (25, 851577280), (32, 665294750), (40, 532235800), (50, 425788640), (64, 332647375), (80, 266117900), (100, 212894320), (125, 170315456), (160, 133058950), (200, 106447160), (250, 85157728), (320, 66529475), (400, 53223580), (500, 42578864), (541, 39352000), (800, 26611790), (1000, 21289432), (1082, 19676000), (1600, 13305895), (2000, 10644716), (2164, 9838000), (2705, 7870400), (4000, 5322358), (4328, 4919000), (4919, 4328000), (5410, 3935200), (8000, 2661179), (8656, 2459500), (9838, 2164000), (10820, 1967600), (13525, 1574080), (17312, 1229750), (19676, 1082000), (21640, 983800), (24595, 865600), (27050, 787040), (34624, 614875), (39352, 541000), (43280, 491900), (49190, 432800), (54100, 393520), (67625, 314816), (78704, 270500), (86560, 245950), (98380, 216400), (108200, 196760), (122975, 173120), (135250, 157408)]