18768710

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 34737120

約数和(自身を除く): 15968410

約数列:

[1, 2, 5, 10, 67, 109, 134, 218, 257, 335, 514, 545, 670, 1090, 1285, 2570, 7303, 14606, 17219, 28013, 34438, 36515, 56026, 73030, 86095, 140065, 172190, 280130, 1876871, 3753742, 9384355, 18768710]

約数ペア:

[(1, 18768710), (2, 9384355), (5, 3753742), (10, 1876871), (67, 280130), (109, 172190), (134, 140065), (218, 86095), (257, 73030), (335, 56026), (514, 36515), (545, 34438), (670, 28013), (1090, 17219), (1285, 14606), (2570, 7303)]