168721840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9719}}^1$

素因数の和:9770

約数の個数: 80

約数和(自身を含む): 462827520

約数和(自身を除く): 294105680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 9719, 17360, 19438, 38876, 48595, 68033, 77752, 97190, 136066, 155504, 194380, 272132, 301289, 340165, 388760, 544264, 602578, 680330, 777520, 1088528, 1205156, 1360660, 1506445, 2109023, 2410312, 2721320, 3012890, 4218046, 4820624, 5442640, 6025780, 8436092, 10545115, 12051560, 16872184, 21090230, 24103120, 33744368, 42180460, 84360920, 168721840]

約数ペア:

[(1, 168721840), (2, 84360920), (4, 42180460), (5, 33744368), (7, 24103120), (8, 21090230), (10, 16872184), (14, 12051560), (16, 10545115), (20, 8436092), (28, 6025780), (31, 5442640), (35, 4820624), (40, 4218046), (56, 3012890), (62, 2721320), (70, 2410312), (80, 2109023), (112, 1506445), (124, 1360660), (140, 1205156), (155, 1088528), (217, 777520), (248, 680330), (280, 602578), (310, 544264), (434, 388760), (496, 340165), (560, 301289), (620, 272132), (868, 194380), (1085, 155504), (1240, 136066), (1736, 97190), (2170, 77752), (2480, 68033), (3472, 48595), (4340, 38876), (8680, 19438), (9719, 17360)]