56131985

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 89886720

約数和(自身を除く): 33754735

約数列:

[1, 5, 7, 13, 19, 35, 43, 65, 91, 95, 133, 151, 215, 247, 301, 455, 559, 665, 755, 817, 1057, 1235, 1505, 1729, 1963, 2795, 2869, 3913, 4085, 5285, 5719, 6493, 8645, 9815, 10621, 13741, 14345, 19565, 20083, 28595, 32465, 37297, 45451, 53105, 68705, 74347, 84409, 100415, 123367, 186485, 227255, 261079, 371735, 422045, 590863, 616835, 863569, 1305395, 1603771, 2954315, 4317845, 8018855, 11226397, 56131985]

約数ペア:

[(1, 56131985), (5, 11226397), (7, 8018855), (13, 4317845), (19, 2954315), (35, 1603771), (43, 1305395), (65, 863569), (91, 616835), (95, 590863), (133, 422045), (151, 371735), (215, 261079), (247, 227255), (301, 186485), (455, 123367), (559, 100415), (665, 84409), (755, 74347), (817, 68705), (1057, 53105), (1235, 45451), (1505, 37297), (1729, 32465), (1963, 28595), (2795, 20083), (2869, 19565), (3913, 14345), (4085, 13741), (5285, 10621), (5719, 9815), (6493, 8645)]