12465520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:230

約数の個数: 80

約数和(自身を含む): 31248000

約数和(自身を除く): 18782480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 59, 76, 80, 95, 118, 139, 152, 190, 236, 278, 295, 304, 380, 472, 556, 590, 695, 760, 944, 1112, 1121, 1180, 1390, 1520, 2224, 2242, 2360, 2641, 2780, 4484, 4720, 5282, 5560, 5605, 8201, 8968, 10564, 11120, 11210, 13205, 16402, 17936, 21128, 22420, 26410, 32804, 41005, 42256, 44840, 52820, 65608, 82010, 89680, 105640, 131216, 155819, 164020, 211280, 311638, 328040, 623276, 656080, 779095, 1246552, 1558190, 2493104, 3116380, 6232760, 12465520]

約数ペア:

[(1, 12465520), (2, 6232760), (4, 3116380), (5, 2493104), (8, 1558190), (10, 1246552), (16, 779095), (19, 656080), (20, 623276), (38, 328040), (40, 311638), (59, 211280), (76, 164020), (80, 155819), (95, 131216), (118, 105640), (139, 89680), (152, 82010), (190, 65608), (236, 52820), (278, 44840), (295, 42256), (304, 41005), (380, 32804), (472, 26410), (556, 22420), (590, 21128), (695, 17936), (760, 16402), (944, 13205), (1112, 11210), (1121, 11120), (1180, 10564), (1390, 8968), (1520, 8201), (2224, 5605), (2242, 5560), (2360, 5282), (2641, 4720), (2780, 4484)]