1991232358570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{128715731}}^1$

素因数の和:128715775

約数の個数: 64

約数和(自身を含む): 4670836482816

約数和(自身を除く): 2679604124246

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 26, 34, 35, 65, 70, 85, 91, 119, 130, 170, 182, 221, 238, 442, 455, 595, 910, 1105, 1190, 1547, 2210, 3094, 7735, 15470, 128715731, 257431462, 643578655, 901010117, 1287157310, 1673304503, 1802020234, 2188167427, 3346609006, 4376334854, 4505050585, 8366522515, 9010101170, 10940837135, 11713131521, 15317171989, 16733045030, 21881674270, 23426263042, 28446176551, 30634343978, 56892353102, 58565657605, 76585859945, 117131315210, 142230882755, 153171719890, 199123235857, 284461765510, 398246471714, 995616179285, 1991232358570]

約数ペア:

[(1, 1991232358570), (2, 995616179285), (5, 398246471714), (7, 284461765510), (10, 199123235857), (13, 153171719890), (14, 142230882755), (17, 117131315210), (26, 76585859945), (34, 58565657605), (35, 56892353102), (65, 30634343978), (70, 28446176551), (85, 23426263042), (91, 21881674270), (119, 16733045030), (130, 15317171989), (170, 11713131521), (182, 10940837135), (221, 9010101170), (238, 8366522515), (442, 4505050585), (455, 4376334854), (595, 3346609006), (910, 2188167427), (1105, 1802020234), (1190, 1673304503), (1547, 1287157310), (2210, 901010117), (3094, 643578655), (7735, 257431462), (15470, 128715731)]