258896240

素因数分解:

$2^4\times 5^1\times {\mathrm{3236203}}^1$

素因数の和:3236216

約数の個数: 20

約数和(自身を含む): 601933944

約数和(自身を除く): 343037704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3236203, 6472406, 12944812, 16181015, 25889624, 32362030, 51779248, 64724060, 129448120, 258896240]

約数ペア:

[(1, 258896240), (2, 129448120), (4, 64724060), (5, 51779248), (8, 32362030), (10, 25889624), (16, 16181015), (20, 12944812), (40, 6472406), (80, 3236203)]