1285094840

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{479513}}^1$

素因数の和:479591

約数の個数: 32

約数和(自身を含む): 2934625680

約数和(自身を除く): 1649530840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 479513, 959026, 1918052, 2397565, 3836104, 4795130, 9590260, 19180520, 32127371, 64254742, 128509484, 160636855, 257018968, 321273710, 642547420, 1285094840]

約数ペア:

[(1, 1285094840), (2, 642547420), (4, 321273710), (5, 257018968), (8, 160636855), (10, 128509484), (20, 64254742), (40, 32127371), (67, 19180520), (134, 9590260), (268, 4795130), (335, 3836104), (536, 2397565), (670, 1918052), (1340, 959026), (2680, 479513)]