421728040

素因数分解:

$2^3\times 5^1\times {\mathrm{967}}^1\times {\mathrm{10903}}^1$

素因数の和:11881

約数の個数: 32

約数和(自身を含む): 949956480

約数和(自身を除く): 528228440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 967, 1934, 3868, 4835, 7736, 9670, 10903, 19340, 21806, 38680, 43612, 54515, 87224, 109030, 218060, 436120, 10543201, 21086402, 42172804, 52716005, 84345608, 105432010, 210864020, 421728040]

約数ペア:

[(1, 421728040), (2, 210864020), (4, 105432010), (5, 84345608), (8, 52716005), (10, 42172804), (20, 21086402), (40, 10543201), (967, 436120), (1934, 218060), (3868, 109030), (4835, 87224), (7736, 54515), (9670, 43612), (10903, 38680), (19340, 21806)]