80164840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{6983}}^1$

素因数の和:7042

約数の個数: 64

約数和(自身を含む): 211196160

約数和(自身を除く): 131031320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 280, 287, 328, 410, 574, 820, 1148, 1435, 1640, 2296, 2870, 5740, 6983, 11480, 13966, 27932, 34915, 48881, 55864, 69830, 97762, 139660, 195524, 244405, 279320, 286303, 391048, 488810, 572606, 977620, 1145212, 1431515, 1955240, 2004121, 2290424, 2863030, 4008242, 5726060, 8016484, 10020605, 11452120, 16032968, 20041210, 40082420, 80164840]

約数ペア:

[(1, 80164840), (2, 40082420), (4, 20041210), (5, 16032968), (7, 11452120), (8, 10020605), (10, 8016484), (14, 5726060), (20, 4008242), (28, 2863030), (35, 2290424), (40, 2004121), (41, 1955240), (56, 1431515), (70, 1145212), (82, 977620), (140, 572606), (164, 488810), (205, 391048), (280, 286303), (287, 279320), (328, 244405), (410, 195524), (574, 139660), (820, 97762), (1148, 69830), (1435, 55864), (1640, 48881), (2296, 34915), (2870, 27932), (5740, 13966), (6983, 11480)]