68021920

素因数分解:

$2^5\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1367}}^1$

素因数の和:1693

約数の個数: 48

約数和(自身を含む): 161336448

約数和(自身を除く): 93314528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 311, 622, 1244, 1367, 1555, 2488, 2734, 3110, 4976, 5468, 6220, 6835, 9952, 10936, 12440, 13670, 21872, 24880, 27340, 43744, 49760, 54680, 109360, 218720, 425137, 850274, 1700548, 2125685, 3401096, 4251370, 6802192, 8502740, 13604384, 17005480, 34010960, 68021920]

約数ペア:

[(1, 68021920), (2, 34010960), (4, 17005480), (5, 13604384), (8, 8502740), (10, 6802192), (16, 4251370), (20, 3401096), (32, 2125685), (40, 1700548), (80, 850274), (160, 425137), (311, 218720), (622, 109360), (1244, 54680), (1367, 49760), (1555, 43744), (2488, 27340), (2734, 24880), (3110, 21872), (4976, 13670), (5468, 12440), (6220, 10936), (6835, 9952)]