2021981210

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{78341}}^1$

素因数の和:78466

約数の個数: 32

約数和(自身を含む): 3807421200

約数和(自身を除く): 1785439990

約数列:

[1, 2, 5, 10, 29, 58, 89, 145, 178, 290, 445, 890, 2581, 5162, 12905, 25810, 78341, 156682, 391705, 783410, 2271889, 4543778, 6972349, 11359445, 13944698, 22718890, 34861745, 69723490, 202198121, 404396242, 1010990605, 2021981210]

約数ペア:

[(1, 2021981210), (2, 1010990605), (5, 404396242), (10, 202198121), (29, 69723490), (58, 34861745), (89, 22718890), (145, 13944698), (178, 11359445), (290, 6972349), (445, 4543778), (890, 2271889), (2581, 783410), (5162, 391705), (12905, 156682), (25810, 78341)]