128449910

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{65203}}^1$

素因数の和:65407

約数の個数: 16

約数和(自身を含む): 232387056

約数和(自身を除く): 103937146

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 65203, 130406, 326015, 652030, 12844991, 25689982, 64224955, 128449910]

約数ペア:

[(1, 128449910), (2, 64224955), (5, 25689982), (10, 12844991), (197, 652030), (394, 326015), (985, 130406), (1970, 65203)]