28840420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29429}}^1$

素因数の和:29452

約数の個数: 36

約数和(自身を含む): 70455420

約数和(自身を除く): 41615000

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 29429, 58858, 117716, 147145, 206003, 294290, 412006, 588580, 824012, 1030015, 1442021, 2060030, 2884042, 4120060, 5768084, 7210105, 14420210, 28840420]

約数ペア:

[(1, 28840420), (2, 14420210), (4, 7210105), (5, 5768084), (7, 4120060), (10, 2884042), (14, 2060030), (20, 1442021), (28, 1030015), (35, 824012), (49, 588580), (70, 412006), (98, 294290), (140, 206003), (196, 147145), (245, 117716), (490, 58858), (980, 29429)]