81365680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{92461}}^1$

素因数の和:92485

約数の個数: 40

約数和(自身を含む): 206375184

約数和(自身を除く): 125009504

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 92461, 184922, 369844, 462305, 739688, 924610, 1017071, 1479376, 1849220, 2034142, 3698440, 4068284, 5085355, 7396880, 8136568, 10170710, 16273136, 20341420, 40682840, 81365680]

約数ペア:

[(1, 81365680), (2, 40682840), (4, 20341420), (5, 16273136), (8, 10170710), (10, 8136568), (11, 7396880), (16, 5085355), (20, 4068284), (22, 3698440), (40, 2034142), (44, 1849220), (55, 1479376), (80, 1017071), (88, 924610), (110, 739688), (176, 462305), (220, 369844), (440, 184922), (880, 92461)]