7261420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 16299360

約数和(自身を除く): 9037940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 197, 380, 388, 394, 485, 788, 970, 985, 1843, 1940, 1970, 3686, 3743, 3940, 7372, 7486, 9215, 14972, 18430, 18715, 19109, 36860, 37430, 38218, 74860, 76436, 95545, 191090, 363071, 382180, 726142, 1452284, 1815355, 3630710, 7261420]

約数ペア:

[(1, 7261420), (2, 3630710), (4, 1815355), (5, 1452284), (10, 726142), (19, 382180), (20, 363071), (38, 191090), (76, 95545), (95, 76436), (97, 74860), (190, 38218), (194, 37430), (197, 36860), (380, 19109), (388, 18715), (394, 18430), (485, 14972), (788, 9215), (970, 7486), (985, 7372), (1843, 3940), (1940, 3743), (1970, 3686)]