28321580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2273}}^1$

素因数の和:2378

約数の個数: 48

約数和(自身を含む): 68765760

約数和(自身を除く): 40444180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2273, 2492, 3115, 4546, 6230, 9092, 11365, 12460, 15911, 22730, 31822, 45460, 63644, 79555, 159110, 202297, 318220, 404594, 809188, 1011485, 1416079, 2022970, 2832158, 4045940, 5664316, 7080395, 14160790, 28321580]

約数ペア:

[(1, 28321580), (2, 14160790), (4, 7080395), (5, 5664316), (7, 4045940), (10, 2832158), (14, 2022970), (20, 1416079), (28, 1011485), (35, 809188), (70, 404594), (89, 318220), (140, 202297), (178, 159110), (356, 79555), (445, 63644), (623, 45460), (890, 31822), (1246, 22730), (1780, 15911), (2273, 12460), (2492, 11365), (3115, 9092), (4546, 6230)]