400454826448

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{823}}^1\times {\mathrm{1789}}^1$

素因数の和:2900

約数の個数: 80

約数和(自身を含む): 790106572800

約数和(自身を除く): 389651746352

約数列:

[1, 2, 4, 8, 16, 89, 178, 191, 356, 382, 712, 764, 823, 1424, 1528, 1646, 1789, 3056, 3292, 3578, 6584, 7156, 13168, 14312, 16999, 28624, 33998, 67996, 73247, 135992, 146494, 157193, 159221, 271984, 292988, 314386, 318442, 341699, 585976, 628772, 636884, 683398, 1171952, 1257544, 1273768, 1366796, 1472347, 2515088, 2547536, 2733592, 2944694, 5467184, 5889388, 11778776, 13990177, 23557552, 27980354, 30411211, 55960708, 60822422, 111921416, 121644844, 131038883, 223842832, 243289688, 262077766, 281218277, 486579376, 524155532, 562436554, 1048311064, 1124873108, 2096622128, 2249746216, 4499492432, 25028426653, 50056853306, 100113706612, 200227413224, 400454826448]

約数ペア:

[(1, 400454826448), (2, 200227413224), (4, 100113706612), (8, 50056853306), (16, 25028426653), (89, 4499492432), (178, 2249746216), (191, 2096622128), (356, 1124873108), (382, 1048311064), (712, 562436554), (764, 524155532), (823, 486579376), (1424, 281218277), (1528, 262077766), (1646, 243289688), (1789, 223842832), (3056, 131038883), (3292, 121644844), (3578, 111921416), (6584, 60822422), (7156, 55960708), (13168, 30411211), (14312, 27980354), (16999, 23557552), (28624, 13990177), (33998, 11778776), (67996, 5889388), (73247, 5467184), (135992, 2944694), (146494, 2733592), (157193, 2547536), (159221, 2515088), (271984, 1472347), (292988, 1366796), (314386, 1273768), (318442, 1257544), (341699, 1171952), (585976, 683398), (628772, 636884)]