61978995

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1999}}^1$

素因数の和:2076

約数の個数: 48

約数和(自身を含む): 117936000

約数和(自身を除く): 55957005

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 53, 65, 117, 159, 195, 265, 477, 585, 689, 795, 1999, 2067, 2385, 3445, 5997, 6201, 9995, 10335, 17991, 25987, 29985, 31005, 77961, 89955, 105947, 129935, 233883, 317841, 389805, 529735, 953523, 1169415, 1377311, 1589205, 4131933, 4767615, 6886555, 12395799, 20659665, 61978995]

約数ペア:

[(1, 61978995), (3, 20659665), (5, 12395799), (9, 6886555), (13, 4767615), (15, 4131933), (39, 1589205), (45, 1377311), (53, 1169415), (65, 953523), (117, 529735), (159, 389805), (195, 317841), (265, 233883), (477, 129935), (585, 105947), (689, 89955), (795, 77961), (1999, 31005), (2067, 29985), (2385, 25987), (3445, 17991), (5997, 10335), (6201, 9995)]