268428260

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1$

素因数の和:752

約数の個数: 48

約数和(自身を含む): 571109616

約数和(自身を除く): 302681356

約数列:

[1, 2, 4, 5, 10, 20, 193, 197, 353, 386, 394, 706, 772, 788, 965, 985, 1412, 1765, 1930, 1970, 3530, 3860, 3940, 7060, 38021, 68129, 69541, 76042, 136258, 139082, 152084, 190105, 272516, 278164, 340645, 347705, 380210, 681290, 695410, 760420, 1362580, 1390820, 13421413, 26842826, 53685652, 67107065, 134214130, 268428260]

約数ペア:

[(1, 268428260), (2, 134214130), (4, 67107065), (5, 53685652), (10, 26842826), (20, 13421413), (193, 1390820), (197, 1362580), (353, 760420), (386, 695410), (394, 681290), (706, 380210), (772, 347705), (788, 340645), (965, 278164), (985, 272516), (1412, 190105), (1765, 152084), (1930, 139082), (1970, 136258), (3530, 76042), (3860, 69541), (3940, 68129), (7060, 38021)]