196397720

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{35839}}^1$

素因数の和:35987

約数の個数: 32

約数和(自身を含む): 445132800

約数和(自身を除く): 248735080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 35839, 71678, 143356, 179195, 286712, 358390, 716780, 1433560, 4909943, 9819886, 19639772, 24549715, 39279544, 49099430, 98198860, 196397720]

約数ペア:

[(1, 196397720), (2, 98198860), (4, 49099430), (5, 39279544), (8, 24549715), (10, 19639772), (20, 9819886), (40, 4909943), (137, 1433560), (274, 716780), (548, 358390), (685, 286712), (1096, 179195), (1370, 143356), (2740, 71678), (5480, 35839)]