156788920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{95603}}^1$

素因数の和:95655

約数の個数: 32

約数和(自身を含む): 361383120

約数和(自身を除く): 204594200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 95603, 191206, 382412, 478015, 764824, 956030, 1912060, 3824120, 3919723, 7839446, 15678892, 19598615, 31357784, 39197230, 78394460, 156788920]

約数ペア:

[(1, 156788920), (2, 78394460), (4, 39197230), (5, 31357784), (8, 19598615), (10, 15678892), (20, 7839446), (40, 3919723), (41, 3824120), (82, 1912060), (164, 956030), (205, 764824), (328, 478015), (410, 382412), (820, 191206), (1640, 95603)]