647492825

素因数分解:

$5^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 936368640

約数和(自身を除く): 288875815

約数列:

[1, 5, 7, 25, 35, 113, 137, 175, 239, 565, 685, 791, 959, 1195, 1673, 2825, 3425, 3955, 4795, 5975, 8365, 15481, 19775, 23975, 27007, 32743, 41825, 77405, 108367, 135035, 163715, 189049, 229201, 387025, 541835, 675175, 818575, 945245, 1146005, 2709175, 3699959, 4726225, 5730025, 18499795, 25899713, 92498975, 129498565, 647492825]

約数ペア:

[(1, 647492825), (5, 129498565), (7, 92498975), (25, 25899713), (35, 18499795), (113, 5730025), (137, 4726225), (175, 3699959), (239, 2709175), (565, 1146005), (685, 945245), (791, 818575), (959, 675175), (1195, 541835), (1673, 387025), (2825, 229201), (3425, 189049), (3955, 163715), (4795, 135035), (5975, 108367), (8365, 77405), (15481, 41825), (19775, 32743), (23975, 27007)]