78756490

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 152990208

約数和(自身を除く): 74233718

約数列:

[1, 2, 5, 10, 41, 47, 61, 67, 82, 94, 122, 134, 205, 235, 305, 335, 410, 470, 610, 670, 1927, 2501, 2747, 2867, 3149, 3854, 4087, 5002, 5494, 5734, 6298, 8174, 9635, 12505, 13735, 14335, 15745, 19270, 20435, 25010, 27470, 28670, 31490, 40870, 117547, 129109, 167567, 192089, 235094, 258218, 335134, 384178, 587735, 645545, 837835, 960445, 1175470, 1291090, 1675670, 1920890, 7875649, 15751298, 39378245, 78756490]

約数ペア:

[(1, 78756490), (2, 39378245), (5, 15751298), (10, 7875649), (41, 1920890), (47, 1675670), (61, 1291090), (67, 1175470), (82, 960445), (94, 837835), (122, 645545), (134, 587735), (205, 384178), (235, 335134), (305, 258218), (335, 235094), (410, 192089), (470, 167567), (610, 129109), (670, 117547), (1927, 40870), (2501, 31490), (2747, 28670), (2867, 27470), (3149, 25010), (3854, 20435), (4087, 19270), (5002, 15745), (5494, 14335), (5734, 13735), (6298, 12505), (8174, 9635)]