90197997

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 131068800

約数和(自身を除く): 40870803

約数列:

[1, 3, 19, 53, 57, 73, 159, 219, 409, 1007, 1227, 1387, 3021, 3869, 4161, 7771, 11607, 21677, 23313, 29857, 65031, 73511, 89571, 220533, 411863, 567283, 1235589, 1582421, 1701849, 4747263, 30065999, 90197997]

約数ペア:

[(1, 90197997), (3, 30065999), (19, 4747263), (53, 1701849), (57, 1582421), (73, 1235589), (159, 567283), (219, 411863), (409, 220533), (1007, 89571), (1227, 73511), (1387, 65031), (3021, 29857), (3869, 23313), (4161, 21677), (7771, 11607)]