8731380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{20789}}^1$

素因数の和:20808

約数の個数: 48

約数和(自身を含む): 27941760

約数和(自身を除く): 19210380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 20789, 41578, 62367, 83156, 103945, 124734, 145523, 207890, 249468, 291046, 311835, 415780, 436569, 582092, 623670, 727615, 873138, 1247340, 1455230, 1746276, 2182845, 2910460, 4365690, 8731380]

約数ペア:

[(1, 8731380), (2, 4365690), (3, 2910460), (4, 2182845), (5, 1746276), (6, 1455230), (7, 1247340), (10, 873138), (12, 727615), (14, 623670), (15, 582092), (20, 436569), (21, 415780), (28, 311835), (30, 291046), (35, 249468), (42, 207890), (60, 145523), (70, 124734), (84, 103945), (105, 83156), (140, 62367), (210, 41578), (420, 20789)]