20009835

素因数分解:

$3^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 36900864

約数和(自身を除く): 16891029

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 243, 383, 387, 405, 645, 1149, 1161, 1215, 1915, 1935, 3447, 3483, 5745, 5805, 10341, 10449, 16469, 17235, 17415, 31023, 49407, 51705, 52245, 82345, 93069, 148221, 155115, 247035, 444663, 465345, 741105, 1333989, 2223315, 4001967, 6669945, 20009835]

約数ペア:

[(1, 20009835), (3, 6669945), (5, 4001967), (9, 2223315), (15, 1333989), (27, 741105), (43, 465345), (45, 444663), (81, 247035), (129, 155115), (135, 148221), (215, 93069), (243, 82345), (383, 52245), (387, 51705), (405, 49407), (645, 31023), (1149, 17415), (1161, 17235), (1215, 16469), (1915, 10449), (1935, 10341), (3447, 5805), (3483, 5745)]