389969505

素因数分解:

$3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{19387}}^1$

素因数の和:19550

約数の個数: 32

約数和(自身を含む): 697968000

約数和(自身を除く): 307998495

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149, 447, 745, 1341, 2235, 4023, 6705, 19387, 20115, 58161, 96935, 174483, 290805, 523449, 872415, 2617245, 2888663, 8665989, 14443315, 25997967, 43329945, 77993901, 129989835, 389969505]

約数ペア:

[(1, 389969505), (3, 129989835), (5, 77993901), (9, 43329945), (15, 25997967), (27, 14443315), (45, 8665989), (135, 2888663), (149, 2617245), (447, 872415), (745, 523449), (1341, 290805), (2235, 174483), (4023, 96935), (6705, 58161), (19387, 20115)]