210820000

素因数分解:

$2^5\times 5^4\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:240

約数の個数: 120

約数和(自身を含む): 529030656

約数和(自身を除く): 318210656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 83, 100, 125, 127, 160, 166, 200, 250, 254, 332, 400, 415, 500, 508, 625, 635, 664, 800, 830, 1000, 1016, 1250, 1270, 1328, 1660, 2000, 2032, 2075, 2500, 2540, 2656, 3175, 3320, 4000, 4064, 4150, 5000, 5080, 6350, 6640, 8300, 10000, 10160, 10375, 10541, 12700, 13280, 15875, 16600, 20000, 20320, 20750, 21082, 25400, 31750, 33200, 41500, 42164, 50800, 51875, 52705, 63500, 66400, 79375, 83000, 84328, 101600, 103750, 105410, 127000, 158750, 166000, 168656, 207500, 210820, 254000, 263525, 317500, 332000, 337312, 415000, 421640, 508000, 527050, 635000, 830000, 843280, 1054100, 1270000, 1317625, 1660000, 1686560, 2108200, 2540000, 2635250, 4216400, 5270500, 6588125, 8432800, 10541000, 13176250, 21082000, 26352500, 42164000, 52705000, 105410000, 210820000]

約数ペア:

[(1, 210820000), (2, 105410000), (4, 52705000), (5, 42164000), (8, 26352500), (10, 21082000), (16, 13176250), (20, 10541000), (25, 8432800), (32, 6588125), (40, 5270500), (50, 4216400), (80, 2635250), (83, 2540000), (100, 2108200), (125, 1686560), (127, 1660000), (160, 1317625), (166, 1270000), (200, 1054100), (250, 843280), (254, 830000), (332, 635000), (400, 527050), (415, 508000), (500, 421640), (508, 415000), (625, 337312), (635, 332000), (664, 317500), (800, 263525), (830, 254000), (1000, 210820), (1016, 207500), (1250, 168656), (1270, 166000), (1328, 158750), (1660, 127000), (2000, 105410), (2032, 103750), (2075, 101600), (2500, 84328), (2540, 83000), (2656, 79375), (3175, 66400), (3320, 63500), (4000, 52705), (4064, 51875), (4150, 50800), (5000, 42164), (5080, 41500), (6350, 33200), (6640, 31750), (8300, 25400), (10000, 21082), (10160, 20750), (10375, 20320), (10541, 20000), (12700, 16600), (13280, 15875)]