65646640

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{7669}}^1$

素因数の和:7789

約数の個数: 40

約数和(自身を含む): 154074960

約数和(自身を除く): 88428320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 7669, 8560, 15338, 30676, 38345, 61352, 76690, 122704, 153380, 306760, 613520, 820583, 1641166, 3282332, 4102915, 6564664, 8205830, 13129328, 16411660, 32823320, 65646640]

約数ペア:

[(1, 65646640), (2, 32823320), (4, 16411660), (5, 13129328), (8, 8205830), (10, 6564664), (16, 4102915), (20, 3282332), (40, 1641166), (80, 820583), (107, 613520), (214, 306760), (428, 153380), (535, 122704), (856, 76690), (1070, 61352), (1712, 38345), (2140, 30676), (4280, 15338), (7669, 8560)]