133992920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{81703}}^1$

素因数の和:81755

約数の個数: 32

約数和(自身を含む): 308841120

約数和(自身を除く): 174848200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 81703, 163406, 326812, 408515, 653624, 817030, 1634060, 3268120, 3349823, 6699646, 13399292, 16749115, 26798584, 33498230, 66996460, 133992920]

約数ペア:

[(1, 133992920), (2, 66996460), (4, 33498230), (5, 26798584), (8, 16749115), (10, 13399292), (20, 6699646), (40, 3349823), (41, 3268120), (82, 1634060), (164, 817030), (205, 653624), (328, 408515), (410, 326812), (820, 163406), (1640, 81703)]