7981110

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1249}}^1$

素因数の和:1333

約数の個数: 48

約数和(自身を含む): 21060000

約数和(自身を除く): 13078890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1249, 1278, 2130, 2498, 3195, 3747, 6245, 6390, 7494, 11241, 12490, 18735, 22482, 37470, 56205, 88679, 112410, 177358, 266037, 443395, 532074, 798111, 886790, 1330185, 1596222, 2660370, 3990555, 7981110]

約数ペア:

[(1, 7981110), (2, 3990555), (3, 2660370), (5, 1596222), (6, 1330185), (9, 886790), (10, 798111), (15, 532074), (18, 443395), (30, 266037), (45, 177358), (71, 112410), (90, 88679), (142, 56205), (213, 37470), (355, 22482), (426, 18735), (639, 12490), (710, 11241), (1065, 7494), (1249, 6390), (1278, 6245), (2130, 3747), (2498, 3195)]