438128000

素因数分解:

$2^7\times 5^3\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:365

約数の個数: 128

約数和(自身を含む): 1102701600

約数和(自身を除く): 664573600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 139, 160, 197, 200, 250, 278, 320, 394, 400, 500, 556, 640, 695, 788, 800, 985, 1000, 1112, 1390, 1576, 1600, 1970, 2000, 2224, 2780, 3152, 3200, 3475, 3940, 4000, 4448, 4925, 5560, 6304, 6950, 7880, 8000, 8896, 9850, 11120, 12608, 13900, 15760, 16000, 17375, 17792, 19700, 22240, 24625, 25216, 27383, 27800, 31520, 34750, 39400, 44480, 49250, 54766, 55600, 63040, 69500, 78800, 88960, 98500, 109532, 111200, 126080, 136915, 139000, 157600, 197000, 219064, 222400, 273830, 278000, 315200, 394000, 438128, 444800, 547660, 556000, 630400, 684575, 788000, 876256, 1095320, 1112000, 1369150, 1576000, 1752512, 2190640, 2224000, 2738300, 3152000, 3422875, 3505024, 4381280, 5476600, 6845750, 8762560, 10953200, 13691500, 17525120, 21906400, 27383000, 43812800, 54766000, 87625600, 109532000, 219064000, 438128000]

約数ペア:

[(1, 438128000), (2, 219064000), (4, 109532000), (5, 87625600), (8, 54766000), (10, 43812800), (16, 27383000), (20, 21906400), (25, 17525120), (32, 13691500), (40, 10953200), (50, 8762560), (64, 6845750), (80, 5476600), (100, 4381280), (125, 3505024), (128, 3422875), (139, 3152000), (160, 2738300), (197, 2224000), (200, 2190640), (250, 1752512), (278, 1576000), (320, 1369150), (394, 1112000), (400, 1095320), (500, 876256), (556, 788000), (640, 684575), (695, 630400), (788, 556000), (800, 547660), (985, 444800), (1000, 438128), (1112, 394000), (1390, 315200), (1576, 278000), (1600, 273830), (1970, 222400), (2000, 219064), (2224, 197000), (2780, 157600), (3152, 139000), (3200, 136915), (3475, 126080), (3940, 111200), (4000, 109532), (4448, 98500), (4925, 88960), (5560, 78800), (6304, 69500), (6950, 63040), (7880, 55600), (8000, 54766), (8896, 49250), (9850, 44480), (11120, 39400), (12608, 34750), (13900, 31520), (15760, 27800), (16000, 27383), (17375, 25216), (17792, 24625), (19700, 22240)]