1640605825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1483}}^1$

素因数の和:1666

約数の個数: 48

約数和(自身を含む): 2285478720

約数和(自身を除く): 644872895

約数列:

[1, 5, 17, 19, 25, 85, 95, 137, 323, 425, 475, 685, 1483, 1615, 2329, 2603, 3425, 7415, 8075, 11645, 13015, 25211, 28177, 37075, 44251, 58225, 65075, 126055, 140885, 203171, 221255, 479009, 630275, 704425, 1015855, 1106275, 2395045, 3453907, 3860249, 5079275, 11975225, 17269535, 19301245, 65624233, 86347675, 96506225, 328121165, 1640605825]

約数ペア:

[(1, 1640605825), (5, 328121165), (17, 96506225), (19, 86347675), (25, 65624233), (85, 19301245), (95, 17269535), (137, 11975225), (323, 5079275), (425, 3860249), (475, 3453907), (685, 2395045), (1483, 1106275), (1615, 1015855), (2329, 704425), (2603, 630275), (3425, 479009), (7415, 221255), (8075, 203171), (11645, 140885), (13015, 126055), (25211, 65075), (28177, 58225), (37075, 44251)]