1285012990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{51257}}^1$

素因数の和:51396

約数の個数: 32

約数和(自身を含む): 2435780160

約数和(自身を除く): 1150767170

約数列:

[1, 2, 5, 10, 23, 46, 109, 115, 218, 230, 545, 1090, 2507, 5014, 12535, 25070, 51257, 102514, 256285, 512570, 1178911, 2357822, 5587013, 5894555, 11174026, 11789110, 27935065, 55870130, 128501299, 257002598, 642506495, 1285012990]

約数ペア:

[(1, 1285012990), (2, 642506495), (5, 257002598), (10, 128501299), (23, 55870130), (46, 27935065), (109, 11789110), (115, 11174026), (218, 5894555), (230, 5587013), (545, 2357822), (1090, 1178911), (2507, 512570), (5014, 256285), (12535, 102514), (25070, 51257)]