28337680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{7229}}^1$

素因数の和:7256

約数の個数: 60

約数和(自身を含む): 76652460

約数和(自身を除く): 48314780

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, 392, 490, 560, 784, 980, 1960, 3920, 7229, 14458, 28916, 36145, 50603, 57832, 72290, 101206, 115664, 144580, 202412, 253015, 289160, 354221, 404824, 506030, 578320, 708442, 809648, 1012060, 1416884, 1771105, 2024120, 2833768, 3542210, 4048240, 5667536, 7084420, 14168840, 28337680]

約数ペア:

[(1, 28337680), (2, 14168840), (4, 7084420), (5, 5667536), (7, 4048240), (8, 3542210), (10, 2833768), (14, 2024120), (16, 1771105), (20, 1416884), (28, 1012060), (35, 809648), (40, 708442), (49, 578320), (56, 506030), (70, 404824), (80, 354221), (98, 289160), (112, 253015), (140, 202412), (196, 144580), (245, 115664), (280, 101206), (392, 72290), (490, 57832), (560, 50603), (784, 36145), (980, 28916), (1960, 14458), (3920, 7229)]