12840542

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:201

約数の個数: 64

約数和(自身を含む): 25401600

約数和(自身を除く): 12561058

約数列:

[1, 2, 11, 13, 17, 19, 22, 26, 34, 38, 139, 143, 187, 209, 221, 247, 278, 286, 323, 374, 418, 442, 494, 646, 1529, 1807, 2363, 2431, 2641, 2717, 3058, 3553, 3614, 4199, 4726, 4862, 5282, 5434, 7106, 8398, 19877, 25993, 29051, 30719, 34333, 39754, 44897, 46189, 51986, 58102, 61438, 68666, 89794, 92378, 337909, 377663, 493867, 583661, 675818, 755326, 987734, 1167322, 6420271, 12840542]

約数ペア:

[(1, 12840542), (2, 6420271), (11, 1167322), (13, 987734), (17, 755326), (19, 675818), (22, 583661), (26, 493867), (34, 377663), (38, 337909), (139, 92378), (143, 89794), (187, 68666), (209, 61438), (221, 58102), (247, 51986), (278, 46189), (286, 44897), (323, 39754), (374, 34333), (418, 30719), (442, 29051), (494, 25993), (646, 19877), (1529, 8398), (1807, 7106), (2363, 5434), (2431, 5282), (2641, 4862), (2717, 4726), (3058, 4199), (3553, 3614)]