19936460

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 43352064

約数和(自身を除く): 23415604

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 127, 167, 188, 235, 254, 334, 470, 508, 635, 668, 835, 940, 1270, 1670, 2540, 3340, 5969, 7849, 11938, 15698, 21209, 23876, 29845, 31396, 39245, 42418, 59690, 78490, 84836, 106045, 119380, 156980, 212090, 424180, 996823, 1993646, 3987292, 4984115, 9968230, 19936460]

約数ペア:

[(1, 19936460), (2, 9968230), (4, 4984115), (5, 3987292), (10, 1993646), (20, 996823), (47, 424180), (94, 212090), (127, 156980), (167, 119380), (188, 106045), (235, 84836), (254, 78490), (334, 59690), (470, 42418), (508, 39245), (635, 31396), (668, 29845), (835, 23876), (940, 21209), (1270, 15698), (1670, 11938), (2540, 7849), (3340, 5969)]