90805520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87313}}^1$

素因数の和:87339

約数の個数: 40

約数和(自身を含む): 227365656

約数和(自身を除く): 136560136

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 87313, 174626, 349252, 436565, 698504, 873130, 1135069, 1397008, 1746260, 2270138, 3492520, 4540276, 5675345, 6985040, 9080552, 11350690, 18161104, 22701380, 45402760, 90805520]

約数ペア:

[(1, 90805520), (2, 45402760), (4, 22701380), (5, 18161104), (8, 11350690), (10, 9080552), (13, 6985040), (16, 5675345), (20, 4540276), (26, 3492520), (40, 2270138), (52, 1746260), (65, 1397008), (80, 1135069), (104, 873130), (130, 698504), (208, 436565), (260, 349252), (520, 174626), (1040, 87313)]