16123780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{281}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 36005760

約数和(自身を除く): 19881980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 151, 190, 281, 302, 380, 562, 604, 755, 1124, 1405, 1510, 2810, 2869, 3020, 5339, 5620, 5738, 10678, 11476, 14345, 21356, 26695, 28690, 42431, 53390, 57380, 84862, 106780, 169724, 212155, 424310, 806189, 848620, 1612378, 3224756, 4030945, 8061890, 16123780]

約数ペア:

[(1, 16123780), (2, 8061890), (4, 4030945), (5, 3224756), (10, 1612378), (19, 848620), (20, 806189), (38, 424310), (76, 212155), (95, 169724), (151, 106780), (190, 84862), (281, 57380), (302, 53390), (380, 42431), (562, 28690), (604, 26695), (755, 21356), (1124, 14345), (1405, 11476), (1510, 10678), (2810, 5738), (2869, 5620), (3020, 5339)]