72503840

素因数分解:

$2^5\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1723}}^1$

素因数の和:2001

約数の個数: 48

約数和(自身を含む): 172041408

約数和(自身を除く): 99537568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 263, 526, 1052, 1315, 1723, 2104, 2630, 3446, 4208, 5260, 6892, 8416, 8615, 10520, 13784, 17230, 21040, 27568, 34460, 42080, 55136, 68920, 137840, 275680, 453149, 906298, 1812596, 2265745, 3625192, 4531490, 7250384, 9062980, 14500768, 18125960, 36251920, 72503840]

約数ペア:

[(1, 72503840), (2, 36251920), (4, 18125960), (5, 14500768), (8, 9062980), (10, 7250384), (16, 4531490), (20, 3625192), (32, 2265745), (40, 1812596), (80, 906298), (160, 453149), (263, 275680), (526, 137840), (1052, 68920), (1315, 55136), (1723, 42080), (2104, 34460), (2630, 27568), (3446, 21040), (4208, 17230), (5260, 13784), (6892, 10520), (8416, 8615)]