19440525

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 35108864

約数和(自身を除く): 15668339

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 127, 157, 195, 325, 381, 471, 635, 785, 975, 1651, 1905, 2041, 2355, 3175, 3925, 4953, 6123, 8255, 9525, 10205, 11775, 19939, 24765, 30615, 41275, 51025, 59817, 99695, 123825, 153075, 259207, 299085, 498475, 777621, 1296035, 1495425, 3888105, 6480175, 19440525]

約数ペア:

[(1, 19440525), (3, 6480175), (5, 3888105), (13, 1495425), (15, 1296035), (25, 777621), (39, 498475), (65, 299085), (75, 259207), (127, 153075), (157, 123825), (195, 99695), (325, 59817), (381, 51025), (471, 41275), (635, 30615), (785, 24765), (975, 19939), (1651, 11775), (1905, 10205), (2041, 9525), (2355, 8255), (3175, 6123), (3925, 4953)]