19427660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{919}}^1$

素因数の和:1086

約数の個数: 48

約数和(自身を含む): 46986240

約数和(自身を除く): 27558580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151, 302, 604, 755, 919, 1057, 1510, 1838, 2114, 3020, 3676, 4228, 4595, 5285, 6433, 9190, 10570, 12866, 18380, 21140, 25732, 32165, 64330, 128660, 138769, 277538, 555076, 693845, 971383, 1387690, 1942766, 2775380, 3885532, 4856915, 9713830, 19427660]

約数ペア:

[(1, 19427660), (2, 9713830), (4, 4856915), (5, 3885532), (7, 2775380), (10, 1942766), (14, 1387690), (20, 971383), (28, 693845), (35, 555076), (70, 277538), (140, 138769), (151, 128660), (302, 64330), (604, 32165), (755, 25732), (919, 21140), (1057, 18380), (1510, 12866), (1838, 10570), (2114, 9190), (3020, 6433), (3676, 5285), (4228, 4595)]