78931425

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2058

約数の個数: 48

約数和(自身を含む): 142705152

約数和(自身を除く): 63773727

約数列:

[1, 3, 5, 15, 17, 25, 31, 51, 75, 85, 93, 155, 255, 425, 465, 527, 775, 1275, 1581, 1997, 2325, 2635, 5991, 7905, 9985, 13175, 29955, 33949, 39525, 49925, 61907, 101847, 149775, 169745, 185721, 309535, 509235, 848725, 928605, 1052419, 1547675, 2546175, 3157257, 4643025, 5262095, 15786285, 26310475, 78931425]

約数ペア:

[(1, 78931425), (3, 26310475), (5, 15786285), (15, 5262095), (17, 4643025), (25, 3157257), (31, 2546175), (51, 1547675), (75, 1052419), (85, 928605), (93, 848725), (155, 509235), (255, 309535), (425, 185721), (465, 169745), (527, 149775), (775, 101847), (1275, 61907), (1581, 49925), (1997, 39525), (2325, 33949), (2635, 29955), (5991, 13175), (7905, 9985)]