266840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{953}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 686880

約数和(自身を除く): 420040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 953, 1906, 3812, 4765, 6671, 7624, 9530, 13342, 19060, 26684, 33355, 38120, 53368, 66710, 133420, 266840]

約数ペア:

[(1, 266840), (2, 133420), (4, 66710), (5, 53368), (7, 38120), (8, 33355), (10, 26684), (14, 19060), (20, 13342), (28, 9530), (35, 7624), (40, 6671), (56, 4765), (70, 3812), (140, 1906), (280, 953)]