28016077840

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1395223}}^1$

素因数の和:1395487

約数の個数: 40

約数和(自身を含む): 65396939328

約数和(自身を除く): 37380861488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 10040, 20080, 1395223, 2790446, 5580892, 6976115, 11161784, 13952230, 22323568, 27904460, 55808920, 111617840, 350200973, 700401946, 1400803892, 1751004865, 2801607784, 3502009730, 5603215568, 7004019460, 14008038920, 28016077840]

約数ペア:

[(1, 28016077840), (2, 14008038920), (4, 7004019460), (5, 5603215568), (8, 3502009730), (10, 2801607784), (16, 1751004865), (20, 1400803892), (40, 700401946), (80, 350200973), (251, 111617840), (502, 55808920), (1004, 27904460), (1255, 22323568), (2008, 13952230), (2510, 11161784), (4016, 6976115), (5020, 5580892), (10040, 2790446), (20080, 1395223)]