49186540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1361}}^1$

素因数の和:1522

約数の個数: 48

約数和(自身を含む): 112119840

約数和(自身を除く): 62933300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 556, 695, 1361, 1390, 1807, 2722, 2780, 3614, 5444, 6805, 7228, 9035, 13610, 17693, 18070, 27220, 35386, 36140, 70772, 88465, 176930, 189179, 353860, 378358, 756716, 945895, 1891790, 2459327, 3783580, 4918654, 9837308, 12296635, 24593270, 49186540]

約数ペア:

[(1, 49186540), (2, 24593270), (4, 12296635), (5, 9837308), (10, 4918654), (13, 3783580), (20, 2459327), (26, 1891790), (52, 945895), (65, 756716), (130, 378358), (139, 353860), (260, 189179), (278, 176930), (556, 88465), (695, 70772), (1361, 36140), (1390, 35386), (1807, 27220), (2722, 18070), (2780, 17693), (3614, 13610), (5444, 9035), (6805, 7228)]