51268040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{727}}^1$

素因数の和:822

約数の個数: 64

約数和(自身を含む): 121080960

約数和(自身を除く): 69812920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 727, 820, 860, 1454, 1640, 1720, 1763, 2908, 3526, 3635, 5816, 7052, 7270, 8815, 14104, 14540, 17630, 29080, 29807, 31261, 35260, 59614, 62522, 70520, 119228, 125044, 149035, 156305, 238456, 250088, 298070, 312610, 596140, 625220, 1192280, 1250440, 1281701, 2563402, 5126804, 6408505, 10253608, 12817010, 25634020, 51268040]

約数ペア:

[(1, 51268040), (2, 25634020), (4, 12817010), (5, 10253608), (8, 6408505), (10, 5126804), (20, 2563402), (40, 1281701), (41, 1250440), (43, 1192280), (82, 625220), (86, 596140), (164, 312610), (172, 298070), (205, 250088), (215, 238456), (328, 156305), (344, 149035), (410, 125044), (430, 119228), (727, 70520), (820, 62522), (860, 59614), (1454, 35260), (1640, 31261), (1720, 29807), (1763, 29080), (2908, 17630), (3526, 14540), (3635, 14104), (5816, 8815), (7052, 7270)]