20797588260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3122761}}^1$

素因数の和:3122813

約数の個数: 72

約数和(自身を含む): 64791065976

約数和(自身を除く): 43993477716

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3330, 6660, 3122761, 6245522, 9368283, 12491044, 15613805, 18736566, 28104849, 31227610, 37473132, 46841415, 56209698, 62455220, 93682830, 112419396, 115542157, 140524245, 187365660, 231084314, 281048490, 346626471, 462168628, 562096980, 577710785, 693252942, 1039879413, 1155421570, 1386505884, 1733132355, 2079758826, 2310843140, 3466264710, 4159517652, 5199397065, 6932529420, 10398794130, 20797588260]

約数ペア:

[(1, 20797588260), (2, 10398794130), (3, 6932529420), (4, 5199397065), (5, 4159517652), (6, 3466264710), (9, 2310843140), (10, 2079758826), (12, 1733132355), (15, 1386505884), (18, 1155421570), (20, 1039879413), (30, 693252942), (36, 577710785), (37, 562096980), (45, 462168628), (60, 346626471), (74, 281048490), (90, 231084314), (111, 187365660), (148, 140524245), (180, 115542157), (185, 112419396), (222, 93682830), (333, 62455220), (370, 56209698), (444, 46841415), (555, 37473132), (666, 31227610), (740, 28104849), (1110, 18736566), (1332, 15613805), (1665, 12491044), (2220, 9368283), (3330, 6245522), (6660, 3122761)]