19140520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{347}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 49610880

約数和(自身を除く): 30470360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 347, 394, 694, 788, 985, 1379, 1388, 1576, 1735, 1970, 2429, 2758, 2776, 3470, 3940, 4858, 5516, 6895, 6940, 7880, 9716, 11032, 12145, 13790, 13880, 19432, 24290, 27580, 48580, 55160, 68359, 97160, 136718, 273436, 341795, 478513, 546872, 683590, 957026, 1367180, 1914052, 2392565, 2734360, 3828104, 4785130, 9570260, 19140520]

約数ペア:

[(1, 19140520), (2, 9570260), (4, 4785130), (5, 3828104), (7, 2734360), (8, 2392565), (10, 1914052), (14, 1367180), (20, 957026), (28, 683590), (35, 546872), (40, 478513), (56, 341795), (70, 273436), (140, 136718), (197, 97160), (280, 68359), (347, 55160), (394, 48580), (694, 27580), (788, 24290), (985, 19432), (1379, 13880), (1388, 13790), (1576, 12145), (1735, 11032), (1970, 9716), (2429, 7880), (2758, 6940), (2776, 6895), (3470, 5516), (3940, 4858)]