18042920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64439}}^1$

素因数の和:64457

約数の個数: 32

約数和(自身を含む): 46396800

約数和(自身を除く): 28353880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64439, 128878, 257756, 322195, 451073, 515512, 644390, 902146, 1288780, 1804292, 2255365, 2577560, 3608584, 4510730, 9021460, 18042920]

約数ペア:

[(1, 18042920), (2, 9021460), (4, 4510730), (5, 3608584), (7, 2577560), (8, 2255365), (10, 1804292), (14, 1288780), (20, 902146), (28, 644390), (35, 515512), (40, 451073), (56, 322195), (70, 257756), (140, 128878), (280, 64439)]