421640000

素因数分解:

$2^6\times 5^4\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:242

約数の個数: 140

約数和(自身を含む): 1066458624

約数和(自身を除く): 644818624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 83, 100, 125, 127, 160, 166, 200, 250, 254, 320, 332, 400, 415, 500, 508, 625, 635, 664, 800, 830, 1000, 1016, 1250, 1270, 1328, 1600, 1660, 2000, 2032, 2075, 2500, 2540, 2656, 3175, 3320, 4000, 4064, 4150, 5000, 5080, 5312, 6350, 6640, 8000, 8128, 8300, 10000, 10160, 10375, 10541, 12700, 13280, 15875, 16600, 20000, 20320, 20750, 21082, 25400, 26560, 31750, 33200, 40000, 40640, 41500, 42164, 50800, 51875, 52705, 63500, 66400, 79375, 83000, 84328, 101600, 103750, 105410, 127000, 132800, 158750, 166000, 168656, 203200, 207500, 210820, 254000, 263525, 317500, 332000, 337312, 415000, 421640, 508000, 527050, 635000, 664000, 674624, 830000, 843280, 1016000, 1054100, 1270000, 1317625, 1660000, 1686560, 2108200, 2540000, 2635250, 3320000, 3373120, 4216400, 5080000, 5270500, 6588125, 8432800, 10541000, 13176250, 16865600, 21082000, 26352500, 42164000, 52705000, 84328000, 105410000, 210820000, 421640000]

約数ペア:

[(1, 421640000), (2, 210820000), (4, 105410000), (5, 84328000), (8, 52705000), (10, 42164000), (16, 26352500), (20, 21082000), (25, 16865600), (32, 13176250), (40, 10541000), (50, 8432800), (64, 6588125), (80, 5270500), (83, 5080000), (100, 4216400), (125, 3373120), (127, 3320000), (160, 2635250), (166, 2540000), (200, 2108200), (250, 1686560), (254, 1660000), (320, 1317625), (332, 1270000), (400, 1054100), (415, 1016000), (500, 843280), (508, 830000), (625, 674624), (635, 664000), (664, 635000), (800, 527050), (830, 508000), (1000, 421640), (1016, 415000), (1250, 337312), (1270, 332000), (1328, 317500), (1600, 263525), (1660, 254000), (2000, 210820), (2032, 207500), (2075, 203200), (2500, 168656), (2540, 166000), (2656, 158750), (3175, 132800), (3320, 127000), (4000, 105410), (4064, 103750), (4150, 101600), (5000, 84328), (5080, 83000), (5312, 79375), (6350, 66400), (6640, 63500), (8000, 52705), (8128, 51875), (8300, 50800), (10000, 42164), (10160, 41500), (10375, 40640), (10541, 40000), (12700, 33200), (13280, 31750), (15875, 26560), (16600, 25400), (20000, 21082), (20320, 20750)]