20104480

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11423}}^1$

素因数の和:11449

約数の個数: 48

約数和(自身を含む): 51819264

約数和(自身を除く): 31714784

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11423, 22846, 45692, 57115, 91384, 114230, 125653, 182768, 228460, 251306, 365536, 456920, 502612, 628265, 913840, 1005224, 1256530, 1827680, 2010448, 2513060, 4020896, 5026120, 10052240, 20104480]

約数ペア:

[(1, 20104480), (2, 10052240), (4, 5026120), (5, 4020896), (8, 2513060), (10, 2010448), (11, 1827680), (16, 1256530), (20, 1005224), (22, 913840), (32, 628265), (40, 502612), (44, 456920), (55, 365536), (80, 251306), (88, 228460), (110, 182768), (160, 125653), (176, 114230), (220, 91384), (352, 57115), (440, 45692), (880, 22846), (1760, 11423)]