20784865976

素因数分解:

$2^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{75793}}^1$

素因数の和:75948

約数の個数: 64

約数和(自身を含む): 45840211200

約数和(自身を除く): 25055345224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 59, 83, 118, 166, 236, 332, 413, 472, 581, 664, 826, 1162, 1652, 2324, 3304, 4648, 4897, 9794, 19588, 34279, 39176, 68558, 75793, 137116, 151586, 274232, 303172, 530551, 606344, 1061102, 2122204, 4244408, 4471787, 6290819, 8943574, 12581638, 17887148, 25163276, 31302509, 35774296, 44035733, 50326552, 62605018, 88071466, 125210036, 176142932, 250420072, 352285864, 371158321, 742316642, 1484633284, 2598108247, 2969266568, 5196216494, 10392432988, 20784865976]

約数ペア:

[(1, 20784865976), (2, 10392432988), (4, 5196216494), (7, 2969266568), (8, 2598108247), (14, 1484633284), (28, 742316642), (56, 371158321), (59, 352285864), (83, 250420072), (118, 176142932), (166, 125210036), (236, 88071466), (332, 62605018), (413, 50326552), (472, 44035733), (581, 35774296), (664, 31302509), (826, 25163276), (1162, 17887148), (1652, 12581638), (2324, 8943574), (3304, 6290819), (4648, 4471787), (4897, 4244408), (9794, 2122204), (19588, 1061102), (34279, 606344), (39176, 530551), (68558, 303172), (75793, 274232), (137116, 151586)]