208983920

素因数分解:

$2^4\times 5^1\times {\mathrm{1543}}^1\times {\mathrm{1693}}^1$

素因数の和:3249

約数の個数: 40

約数和(自身を含む): 486489696

約数和(自身を除く): 277505776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1543, 1693, 3086, 3386, 6172, 6772, 7715, 8465, 12344, 13544, 15430, 16930, 24688, 27088, 30860, 33860, 61720, 67720, 123440, 135440, 2612299, 5224598, 10449196, 13061495, 20898392, 26122990, 41796784, 52245980, 104491960, 208983920]

約数ペア:

[(1, 208983920), (2, 104491960), (4, 52245980), (5, 41796784), (8, 26122990), (10, 20898392), (16, 13061495), (20, 10449196), (40, 5224598), (80, 2612299), (1543, 135440), (1693, 123440), (3086, 67720), (3386, 61720), (6172, 33860), (6772, 30860), (7715, 27088), (8465, 24688), (12344, 16930), (13544, 15430)]