64871248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{311881}}^1$

素因数の和:311902

約数の個数: 20

約数和(自身を含む): 135356788

約数和(自身を除く): 70485540

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 311881, 623762, 1247524, 2495048, 4054453, 4990096, 8108906, 16217812, 32435624, 64871248]

約数ペア:

[(1, 64871248), (2, 32435624), (4, 16217812), (8, 8108906), (13, 4990096), (16, 4054453), (26, 2495048), (52, 1247524), (104, 623762), (208, 311881)]