828767920

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1\times {\mathrm{971}}^1$

素因数の和:1258

約数の個数: 80

約数和(自身を含む): 1978587648

約数和(自身を除く): 1149819728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 227, 235, 376, 454, 470, 752, 908, 940, 971, 1135, 1816, 1880, 1942, 2270, 3632, 3760, 3884, 4540, 4855, 7768, 9080, 9710, 10669, 15536, 18160, 19420, 21338, 38840, 42676, 45637, 53345, 77680, 85352, 91274, 106690, 170704, 182548, 213380, 220417, 228185, 365096, 426760, 440834, 456370, 730192, 853520, 881668, 912740, 1102085, 1763336, 1825480, 2204170, 3526672, 3650960, 4408340, 8816680, 10359599, 17633360, 20719198, 41438396, 51797995, 82876792, 103595990, 165753584, 207191980, 414383960, 828767920]

約数ペア:

[(1, 828767920), (2, 414383960), (4, 207191980), (5, 165753584), (8, 103595990), (10, 82876792), (16, 51797995), (20, 41438396), (40, 20719198), (47, 17633360), (80, 10359599), (94, 8816680), (188, 4408340), (227, 3650960), (235, 3526672), (376, 2204170), (454, 1825480), (470, 1763336), (752, 1102085), (908, 912740), (940, 881668), (971, 853520), (1135, 730192), (1816, 456370), (1880, 440834), (1942, 426760), (2270, 365096), (3632, 228185), (3760, 220417), (3884, 213380), (4540, 182548), (4855, 170704), (7768, 106690), (9080, 91274), (9710, 85352), (10669, 77680), (15536, 53345), (18160, 45637), (19420, 42676), (21338, 38840)]