81963245

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{499}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 128016000

約数和(自身を除く): 46052755

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 361, 455, 499, 665, 1235, 1729, 1805, 2495, 2527, 3493, 4693, 6487, 8645, 9481, 12635, 17465, 23465, 32435, 32851, 45409, 47405, 66367, 123253, 164255, 180139, 227045, 331835, 616265, 862771, 900695, 1260973, 2341807, 4313855, 6304865, 11709035, 16392649, 81963245]

約数ペア:

[(1, 81963245), (5, 16392649), (7, 11709035), (13, 6304865), (19, 4313855), (35, 2341807), (65, 1260973), (91, 900695), (95, 862771), (133, 616265), (247, 331835), (361, 227045), (455, 180139), (499, 164255), (665, 123253), (1235, 66367), (1729, 47405), (1805, 45409), (2495, 32851), (2527, 32435), (3493, 23465), (4693, 17465), (6487, 12635), (8645, 9481)]