256459775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3119}}^1$

素因数の和:3176

約数の個数: 48

約数和(自身を含む): 389975040

約数和(自身を除く): 133515265

約数列:

[1, 5, 11, 13, 23, 25, 55, 65, 115, 143, 253, 275, 299, 325, 575, 715, 1265, 1495, 3119, 3289, 3575, 6325, 7475, 15595, 16445, 34309, 40547, 71737, 77975, 82225, 171545, 202735, 358685, 446017, 789107, 857725, 932581, 1013675, 1793425, 2230085, 3945535, 4662905, 10258391, 11150425, 19727675, 23314525, 51291955, 256459775]

約数ペア:

[(1, 256459775), (5, 51291955), (11, 23314525), (13, 19727675), (23, 11150425), (25, 10258391), (55, 4662905), (65, 3945535), (115, 2230085), (143, 1793425), (253, 1013675), (275, 932581), (299, 857725), (325, 789107), (575, 446017), (715, 358685), (1265, 202735), (1495, 171545), (3119, 82225), (3289, 77975), (3575, 71737), (6325, 40547), (7475, 34309), (15595, 16445)]