80417920

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11423}}^1$

素因数の和:11453

約数の個数: 64

約数和(自身を含む): 209744640

約数和(自身を除く): 129326720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 7040, 11423, 22846, 45692, 57115, 91384, 114230, 125653, 182768, 228460, 251306, 365536, 456920, 502612, 628265, 731072, 913840, 1005224, 1256530, 1462144, 1827680, 2010448, 2513060, 3655360, 4020896, 5026120, 7310720, 8041792, 10052240, 16083584, 20104480, 40208960, 80417920]

約数ペア:

[(1, 80417920), (2, 40208960), (4, 20104480), (5, 16083584), (8, 10052240), (10, 8041792), (11, 7310720), (16, 5026120), (20, 4020896), (22, 3655360), (32, 2513060), (40, 2010448), (44, 1827680), (55, 1462144), (64, 1256530), (80, 1005224), (88, 913840), (110, 731072), (128, 628265), (160, 502612), (176, 456920), (220, 365536), (320, 251306), (352, 228460), (440, 182768), (640, 125653), (704, 114230), (880, 91384), (1408, 57115), (1760, 45692), (3520, 22846), (7040, 11423)]