201915964

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{139831}}^1$

素因数の和:139873

約数の個数: 18

約数和(自身を含む): 372931944

約数和(自身を除く): 171015980

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 139831, 279662, 559324, 2656789, 5313578, 10627156, 50478991, 100957982, 201915964]

約数ペア:

[(1, 201915964), (2, 100957982), (4, 50478991), (19, 10627156), (38, 5313578), (76, 2656789), (361, 559324), (722, 279662), (1444, 139831)]