221989600

素因数分解:

$2^5\times 5^2\times 7^3\times {\mathrm{809}}^1$

素因数の和:850

約数の個数: 144

約数和(自身を含む): 632772000

約数和(自身を除く): 410782400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 160, 175, 196, 200, 224, 245, 280, 343, 350, 392, 400, 490, 560, 686, 700, 784, 800, 809, 980, 1120, 1225, 1372, 1400, 1568, 1618, 1715, 1960, 2450, 2744, 2800, 3236, 3430, 3920, 4045, 4900, 5488, 5600, 5663, 6472, 6860, 7840, 8090, 8575, 9800, 10976, 11326, 12944, 13720, 16180, 17150, 19600, 20225, 22652, 25888, 27440, 28315, 32360, 34300, 39200, 39641, 40450, 45304, 54880, 56630, 64720, 68600, 79282, 80900, 90608, 113260, 129440, 137200, 141575, 158564, 161800, 181216, 198205, 226520, 274400, 277487, 283150, 317128, 323600, 396410, 453040, 554974, 566300, 634256, 647200, 792820, 906080, 991025, 1109948, 1132600, 1268512, 1387435, 1585640, 1982050, 2219896, 2265200, 2774870, 3171280, 3964100, 4439792, 4530400, 5549740, 6342560, 6937175, 7928200, 8879584, 11099480, 13874350, 15856400, 22198960, 27748700, 31712800, 44397920, 55497400, 110994800, 221989600]

約数ペア:

[(1, 221989600), (2, 110994800), (4, 55497400), (5, 44397920), (7, 31712800), (8, 27748700), (10, 22198960), (14, 15856400), (16, 13874350), (20, 11099480), (25, 8879584), (28, 7928200), (32, 6937175), (35, 6342560), (40, 5549740), (49, 4530400), (50, 4439792), (56, 3964100), (70, 3171280), (80, 2774870), (98, 2265200), (100, 2219896), (112, 1982050), (140, 1585640), (160, 1387435), (175, 1268512), (196, 1132600), (200, 1109948), (224, 991025), (245, 906080), (280, 792820), (343, 647200), (350, 634256), (392, 566300), (400, 554974), (490, 453040), (560, 396410), (686, 323600), (700, 317128), (784, 283150), (800, 277487), (809, 274400), (980, 226520), (1120, 198205), (1225, 181216), (1372, 161800), (1400, 158564), (1568, 141575), (1618, 137200), (1715, 129440), (1960, 113260), (2450, 90608), (2744, 80900), (2800, 79282), (3236, 68600), (3430, 64720), (3920, 56630), (4045, 54880), (4900, 45304), (5488, 40450), (5600, 39641), (5663, 39200), (6472, 34300), (6860, 32360), (7840, 28315), (8090, 27440), (8575, 25888), (9800, 22652), (10976, 20225), (11326, 19600), (12944, 17150), (13720, 16180)]