290707925

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 397688832

約数和(自身を除く): 106980907

約数列:

[1, 5, 23, 25, 31, 47, 115, 155, 235, 347, 575, 713, 775, 1081, 1175, 1457, 1735, 3565, 5405, 7285, 7981, 8675, 10757, 16309, 17825, 27025, 33511, 36425, 39905, 53785, 81545, 167555, 199525, 247411, 268925, 375107, 407725, 505579, 837775, 1237055, 1875535, 2527895, 6185275, 9377675, 11628317, 12639475, 58141585, 290707925]

約数ペア:

[(1, 290707925), (5, 58141585), (23, 12639475), (25, 11628317), (31, 9377675), (47, 6185275), (115, 2527895), (155, 1875535), (235, 1237055), (347, 837775), (575, 505579), (713, 407725), (775, 375107), (1081, 268925), (1175, 247411), (1457, 199525), (1735, 167555), (3565, 81545), (5405, 53785), (7285, 39905), (7981, 36425), (8675, 33511), (10757, 27025), (16309, 17825)]