20121247785

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{383}}^1\times {\mathrm{1733}}^1$

素因数の和:2214

約数の個数: 64

約数和(自身を含む): 33750908928

約数和(自身を除く): 13629661143

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 215, 235, 383, 645, 705, 1149, 1733, 1915, 2021, 5199, 5745, 6063, 8665, 10105, 16469, 18001, 25995, 30315, 49407, 54003, 74519, 81451, 82345, 90005, 223557, 244353, 247035, 270015, 372595, 407255, 663739, 774043, 1117785, 1221765, 1991217, 2322129, 3318695, 3502393, 3870215, 9956085, 10507179, 11610645, 17511965, 28540777, 31195733, 52535895, 85622331, 93587199, 142703885, 155978665, 428111655, 467935995, 1341416519, 4024249557, 6707082595, 20121247785]

約数ペア:

[(1, 20121247785), (3, 6707082595), (5, 4024249557), (15, 1341416519), (43, 467935995), (47, 428111655), (129, 155978665), (141, 142703885), (215, 93587199), (235, 85622331), (383, 52535895), (645, 31195733), (705, 28540777), (1149, 17511965), (1733, 11610645), (1915, 10507179), (2021, 9956085), (5199, 3870215), (5745, 3502393), (6063, 3318695), (8665, 2322129), (10105, 1991217), (16469, 1221765), (18001, 1117785), (25995, 774043), (30315, 663739), (49407, 407255), (54003, 372595), (74519, 270015), (81451, 247035), (82345, 244353), (90005, 223557)]