2641020016

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{1187509}}^1$

素因数の和:1187656

約数の個数: 20

約数和(自身を含む): 5153793400

約数和(自身を除く): 2512773384

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 1187509, 2375018, 4750036, 9500072, 19000144, 165063751, 330127502, 660255004, 1320510008, 2641020016]

約数ペア:

[(1, 2641020016), (2, 1320510008), (4, 660255004), (8, 330127502), (16, 165063751), (139, 19000144), (278, 9500072), (556, 4750036), (1112, 2375018), (2224, 1187509)]