268721845

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{823}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 389191680

約数和(自身を除く): 120469835

約数列:

[1, 5, 7, 19, 35, 95, 133, 491, 665, 823, 2455, 3437, 4115, 5761, 9329, 15637, 17185, 28805, 46645, 65303, 78185, 109459, 326515, 404093, 547295, 2020465, 2828651, 7677767, 14143255, 38388835, 53744369, 268721845]

約数ペア:

[(1, 268721845), (5, 53744369), (7, 38388835), (19, 14143255), (35, 7677767), (95, 2828651), (133, 2020465), (491, 547295), (665, 404093), (823, 326515), (2455, 109459), (3437, 78185), (4115, 65303), (5761, 46645), (9329, 28805), (15637, 17185)]