131715990

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{69691}}^1$

素因数の和:69714

約数の個数: 64

約数和(自身を含む): 401425920

約数和(自身を除く): 269709930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 69691, 139382, 209073, 348455, 418146, 487837, 627219, 696910, 975674, 1045365, 1254438, 1463511, 1881657, 2090730, 2439185, 2927022, 3136095, 3763314, 4390533, 4878370, 6272190, 7317555, 8781066, 9408285, 13171599, 14635110, 18816570, 21952665, 26343198, 43905330, 65857995, 131715990]

約数ペア:

[(1, 131715990), (2, 65857995), (3, 43905330), (5, 26343198), (6, 21952665), (7, 18816570), (9, 14635110), (10, 13171599), (14, 9408285), (15, 8781066), (18, 7317555), (21, 6272190), (27, 4878370), (30, 4390533), (35, 3763314), (42, 3136095), (45, 2927022), (54, 2439185), (63, 2090730), (70, 1881657), (90, 1463511), (105, 1254438), (126, 1045365), (135, 975674), (189, 696910), (210, 627219), (270, 487837), (315, 418146), (378, 348455), (630, 209073), (945, 139382), (1890, 69691)]