7921030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 15942960

約数和(自身を除く): 8021930

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 109, 130, 169, 215, 218, 338, 430, 545, 559, 845, 1090, 1118, 1417, 1690, 2795, 2834, 4687, 5590, 7085, 7267, 9374, 14170, 14534, 18421, 23435, 36335, 36842, 46870, 60931, 72670, 92105, 121862, 184210, 304655, 609310, 792103, 1584206, 3960515, 7921030]

約数ペア:

[(1, 7921030), (2, 3960515), (5, 1584206), (10, 792103), (13, 609310), (26, 304655), (43, 184210), (65, 121862), (86, 92105), (109, 72670), (130, 60931), (169, 46870), (215, 36842), (218, 36335), (338, 23435), (430, 18421), (545, 14534), (559, 14170), (845, 9374), (1090, 7267), (1118, 7085), (1417, 5590), (1690, 4687), (2795, 2834)]