72917840

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2273}}^1$

素因数の和:2687

約数の個数: 40

約数和(自身を含む): 170031528

約数和(自身を除く): 97113688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 802, 1604, 2005, 2273, 3208, 4010, 4546, 6416, 8020, 9092, 11365, 16040, 18184, 22730, 32080, 36368, 45460, 90920, 181840, 911473, 1822946, 3645892, 4557365, 7291784, 9114730, 14583568, 18229460, 36458920, 72917840]

約数ペア:

[(1, 72917840), (2, 36458920), (4, 18229460), (5, 14583568), (8, 9114730), (10, 7291784), (16, 4557365), (20, 3645892), (40, 1822946), (80, 911473), (401, 181840), (802, 90920), (1604, 45460), (2005, 36368), (2273, 32080), (3208, 22730), (4010, 18184), (4546, 16040), (6416, 11365), (8020, 9092)]