19736480

素因数分解:

$2^5\times 5^1\times {\mathrm{293}}^1\times {\mathrm{421}}^1$

素因数の和:729

約数の個数: 48

約数和(自身を含む): 46897704

約数和(自身を除く): 27161224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 293, 421, 586, 842, 1172, 1465, 1684, 2105, 2344, 2930, 3368, 4210, 4688, 5860, 6736, 8420, 9376, 11720, 13472, 16840, 23440, 33680, 46880, 67360, 123353, 246706, 493412, 616765, 986824, 1233530, 1973648, 2467060, 3947296, 4934120, 9868240, 19736480]

約数ペア:

[(1, 19736480), (2, 9868240), (4, 4934120), (5, 3947296), (8, 2467060), (10, 1973648), (16, 1233530), (20, 986824), (32, 616765), (40, 493412), (80, 246706), (160, 123353), (293, 67360), (421, 46880), (586, 33680), (842, 23440), (1172, 16840), (1465, 13472), (1684, 11720), (2105, 9376), (2344, 8420), (2930, 6736), (3368, 5860), (4210, 4688)]