20476720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23269}}^1$

素因数の和:23293

約数の個数: 40

約数和(自身を含む): 51938640

約数和(自身を除く): 31461920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23269, 46538, 93076, 116345, 186152, 232690, 255959, 372304, 465380, 511918, 930760, 1023836, 1279795, 1861520, 2047672, 2559590, 4095344, 5119180, 10238360, 20476720]

約数ペア:

[(1, 20476720), (2, 10238360), (4, 5119180), (5, 4095344), (8, 2559590), (10, 2047672), (11, 1861520), (16, 1279795), (20, 1023836), (22, 930760), (40, 511918), (44, 465380), (55, 372304), (80, 255959), (88, 232690), (110, 186152), (176, 116345), (220, 93076), (440, 46538), (880, 23269)]