25821040

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{941}}^1$

素因数の和:975

約数の個数: 80

約数和(自身を含む): 70084800

約数和(自身を除く): 44263760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 941, 980, 1372, 1715, 1882, 1960, 2744, 3430, 3764, 3920, 4705, 5488, 6587, 6860, 7528, 9410, 13174, 13720, 15056, 18820, 26348, 27440, 32935, 37640, 46109, 52696, 65870, 75280, 92218, 105392, 131740, 184436, 230545, 263480, 322763, 368872, 461090, 526960, 645526, 737744, 922180, 1291052, 1613815, 1844360, 2582104, 3227630, 3688720, 5164208, 6455260, 12910520, 25821040]

約数ペア:

[(1, 25821040), (2, 12910520), (4, 6455260), (5, 5164208), (7, 3688720), (8, 3227630), (10, 2582104), (14, 1844360), (16, 1613815), (20, 1291052), (28, 922180), (35, 737744), (40, 645526), (49, 526960), (56, 461090), (70, 368872), (80, 322763), (98, 263480), (112, 230545), (140, 184436), (196, 131740), (245, 105392), (280, 92218), (343, 75280), (392, 65870), (490, 52696), (560, 46109), (686, 37640), (784, 32935), (941, 27440), (980, 26348), (1372, 18820), (1715, 15056), (1882, 13720), (1960, 13174), (2744, 9410), (3430, 7528), (3764, 6860), (3920, 6587), (4705, 5488)]