16985680

素因数分解:

$2^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{881}}^1$

素因数の和:1135

約数の個数: 40

約数和(自身を含む): 39700584

約数和(自身を除く): 22714904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241, 482, 881, 964, 1205, 1762, 1928, 2410, 3524, 3856, 4405, 4820, 7048, 8810, 9640, 14096, 17620, 19280, 35240, 70480, 212321, 424642, 849284, 1061605, 1698568, 2123210, 3397136, 4246420, 8492840, 16985680]

約数ペア:

[(1, 16985680), (2, 8492840), (4, 4246420), (5, 3397136), (8, 2123210), (10, 1698568), (16, 1061605), (20, 849284), (40, 424642), (80, 212321), (241, 70480), (482, 35240), (881, 19280), (964, 17620), (1205, 14096), (1762, 9640), (1928, 8810), (2410, 7048), (3524, 4820), (3856, 4405)]