251570480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1979}}^1$

素因数の和:2226

約数の個数: 80

約数和(自身を含む): 671742720

約数和(自身を除く): 420172240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 227, 280, 454, 560, 908, 1135, 1589, 1816, 1979, 2270, 3178, 3632, 3958, 4540, 6356, 7916, 7945, 9080, 9895, 12712, 13853, 15832, 15890, 18160, 19790, 25424, 27706, 31664, 31780, 39580, 55412, 63560, 69265, 79160, 110824, 127120, 138530, 158320, 221648, 277060, 449233, 554120, 898466, 1108240, 1796932, 2246165, 3144631, 3593864, 4492330, 6289262, 7187728, 8984660, 12578524, 15723155, 17969320, 25157048, 31446310, 35938640, 50314096, 62892620, 125785240, 251570480]

約数ペア:

[(1, 251570480), (2, 125785240), (4, 62892620), (5, 50314096), (7, 35938640), (8, 31446310), (10, 25157048), (14, 17969320), (16, 15723155), (20, 12578524), (28, 8984660), (35, 7187728), (40, 6289262), (56, 4492330), (70, 3593864), (80, 3144631), (112, 2246165), (140, 1796932), (227, 1108240), (280, 898466), (454, 554120), (560, 449233), (908, 277060), (1135, 221648), (1589, 158320), (1816, 138530), (1979, 127120), (2270, 110824), (3178, 79160), (3632, 69265), (3958, 63560), (4540, 55412), (6356, 39580), (7916, 31780), (7945, 31664), (9080, 27706), (9895, 25424), (12712, 19790), (13853, 18160), (15832, 15890)]