31137920

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4423}}^1$

素因数の和:4453

約数の個数: 64

約数和(自身を含む): 81224640

約数和(自身を除く): 50086720

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, 4423, 7040, 8846, 17692, 22115, 35384, 44230, 48653, 70768, 88460, 97306, 141536, 176920, 194612, 243265, 283072, 353840, 389224, 486530, 566144, 707680, 778448, 973060, 1415360, 1556896, 1946120, 2830720, 3113792, 3892240, 6227584, 7784480, 15568960, 31137920]

約数ペア:

[(1, 31137920), (2, 15568960), (4, 7784480), (5, 6227584), (8, 3892240), (10, 3113792), (11, 2830720), (16, 1946120), (20, 1556896), (22, 1415360), (32, 973060), (40, 778448), (44, 707680), (55, 566144), (64, 486530), (80, 389224), (88, 353840), (110, 283072), (128, 243265), (160, 194612), (176, 176920), (220, 141536), (320, 97306), (352, 88460), (440, 70768), (640, 48653), (704, 44230), (880, 35384), (1408, 22115), (1760, 17692), (3520, 8846), (4423, 7040)]