978171425

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{1889}}^1$

素因数の和:2186

約数の個数: 48

約数和(自身を含む): 1518652800

約数和(自身を除く): 540481375

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 269, 275, 385, 1345, 1883, 1889, 1925, 2959, 6725, 9415, 9445, 13223, 14795, 20713, 20779, 47075, 47225, 66115, 73975, 103565, 103895, 145453, 330575, 508141, 517825, 519475, 727265, 2540705, 3556987, 3636325, 5589551, 12703525, 17784935, 27947755, 39126857, 88924675, 139738775, 195634285, 978171425]

約数ペア:

[(1, 978171425), (5, 195634285), (7, 139738775), (11, 88924675), (25, 39126857), (35, 27947755), (55, 17784935), (77, 12703525), (175, 5589551), (269, 3636325), (275, 3556987), (385, 2540705), (1345, 727265), (1883, 519475), (1889, 517825), (1925, 508141), (2959, 330575), (6725, 145453), (9415, 103895), (9445, 103565), (13223, 73975), (14795, 66115), (20713, 47225), (20779, 47075)]