20522480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23321}}^1$

素因数の和:23345

約数の個数: 40

約数和(自身を含む): 52054704

約数和(自身を除く): 31532224

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23321, 46642, 93284, 116605, 186568, 233210, 256531, 373136, 466420, 513062, 932840, 1026124, 1282655, 1865680, 2052248, 2565310, 4104496, 5130620, 10261240, 20522480]

約数ペア:

[(1, 20522480), (2, 10261240), (4, 5130620), (5, 4104496), (8, 2565310), (10, 2052248), (11, 1865680), (16, 1282655), (20, 1026124), (22, 932840), (40, 513062), (44, 466420), (55, 373136), (80, 256531), (88, 233210), (110, 186568), (176, 116605), (220, 93284), (440, 46642), (880, 23321)]