39490640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{727}}^1$

素因数の和:844

約数の個数: 80

約数和(自身を含む): 106159872

約数和(自身を除く): 66669232

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 97, 112, 140, 194, 280, 388, 485, 560, 679, 727, 776, 970, 1358, 1454, 1552, 1940, 2716, 2908, 3395, 3635, 3880, 5089, 5432, 5816, 6790, 7270, 7760, 10178, 10864, 11632, 13580, 14540, 20356, 25445, 27160, 29080, 40712, 50890, 54320, 58160, 70519, 81424, 101780, 141038, 203560, 282076, 352595, 407120, 493633, 564152, 705190, 987266, 1128304, 1410380, 1974532, 2468165, 2820760, 3949064, 4936330, 5641520, 7898128, 9872660, 19745320, 39490640]

約数ペア:

[(1, 39490640), (2, 19745320), (4, 9872660), (5, 7898128), (7, 5641520), (8, 4936330), (10, 3949064), (14, 2820760), (16, 2468165), (20, 1974532), (28, 1410380), (35, 1128304), (40, 987266), (56, 705190), (70, 564152), (80, 493633), (97, 407120), (112, 352595), (140, 282076), (194, 203560), (280, 141038), (388, 101780), (485, 81424), (560, 70519), (679, 58160), (727, 54320), (776, 50890), (970, 40712), (1358, 29080), (1454, 27160), (1552, 25445), (1940, 20356), (2716, 14540), (2908, 13580), (3395, 11632), (3635, 10864), (3880, 10178), (5089, 7760), (5432, 7270), (5816, 6790)]