255819760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{456821}}^1$

素因数の和:456841

約数の個数: 40

約数和(自身を含む): 679751136

約数和(自身を除く): 423931376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 456821, 913642, 1827284, 2284105, 3197747, 3654568, 4568210, 6395494, 7309136, 9136420, 12790988, 15988735, 18272840, 25581976, 31977470, 36545680, 51163952, 63954940, 127909880, 255819760]

約数ペア:

[(1, 255819760), (2, 127909880), (4, 63954940), (5, 51163952), (7, 36545680), (8, 31977470), (10, 25581976), (14, 18272840), (16, 15988735), (20, 12790988), (28, 9136420), (35, 7309136), (40, 6395494), (56, 4568210), (70, 3654568), (80, 3197747), (112, 2284105), (140, 1827284), (280, 913642), (560, 456821)]