280807520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{250721}}^1$

素因数の和:250743

約数の個数: 48

約数和(自身を含む): 758183328

約数和(自身を除く): 477375808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 250721, 501442, 1002884, 1253605, 1755047, 2005768, 2507210, 3510094, 4011536, 5014420, 7020188, 8023072, 8775235, 10028840, 14040376, 17550470, 20057680, 28080752, 35100940, 40115360, 56161504, 70201880, 140403760, 280807520]

約数ペア:

[(1, 280807520), (2, 140403760), (4, 70201880), (5, 56161504), (7, 40115360), (8, 35100940), (10, 28080752), (14, 20057680), (16, 17550470), (20, 14040376), (28, 10028840), (32, 8775235), (35, 8023072), (40, 7020188), (56, 5014420), (70, 4011536), (80, 3510094), (112, 2507210), (140, 2005768), (160, 1755047), (224, 1253605), (280, 1002884), (560, 501442), (1120, 250721)]