128570920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:203

約数の個数: 128

約数和(自身を含む): 321408000

約数和(自身を除く): 192837080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 40, 46, 58, 61, 79, 92, 115, 116, 122, 145, 158, 184, 230, 232, 244, 290, 305, 316, 395, 460, 488, 580, 610, 632, 667, 790, 920, 1160, 1220, 1334, 1403, 1580, 1769, 1817, 2291, 2440, 2668, 2806, 3160, 3335, 3538, 3634, 4582, 4819, 5336, 5612, 6670, 7015, 7076, 7268, 8845, 9085, 9164, 9638, 11224, 11455, 13340, 14030, 14152, 14536, 17690, 18170, 18328, 19276, 22910, 24095, 26680, 28060, 35380, 36340, 38552, 40687, 45820, 48190, 52693, 56120, 70760, 72680, 81374, 91640, 96380, 105386, 110837, 139751, 162748, 192760, 203435, 210772, 221674, 263465, 279502, 325496, 406870, 421544, 443348, 526930, 554185, 559004, 698755, 813740, 886696, 1053860, 1108370, 1118008, 1397510, 1627480, 2107720, 2216740, 2795020, 3214273, 4433480, 5590040, 6428546, 12857092, 16071365, 25714184, 32142730, 64285460, 128570920]

約数ペア:

[(1, 128570920), (2, 64285460), (4, 32142730), (5, 25714184), (8, 16071365), (10, 12857092), (20, 6428546), (23, 5590040), (29, 4433480), (40, 3214273), (46, 2795020), (58, 2216740), (61, 2107720), (79, 1627480), (92, 1397510), (115, 1118008), (116, 1108370), (122, 1053860), (145, 886696), (158, 813740), (184, 698755), (230, 559004), (232, 554185), (244, 526930), (290, 443348), (305, 421544), (316, 406870), (395, 325496), (460, 279502), (488, 263465), (580, 221674), (610, 210772), (632, 203435), (667, 192760), (790, 162748), (920, 139751), (1160, 110837), (1220, 105386), (1334, 96380), (1403, 91640), (1580, 81374), (1769, 72680), (1817, 70760), (2291, 56120), (2440, 52693), (2668, 48190), (2806, 45820), (3160, 40687), (3335, 38552), (3538, 36340), (3634, 35380), (4582, 28060), (4819, 26680), (5336, 24095), (5612, 22910), (6670, 19276), (7015, 18328), (7076, 18170), (7268, 17690), (8845, 14536), (9085, 14152), (9164, 14030), (9638, 13340), (11224, 11455)]