81471068

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 168182784

約数和(自身を除く): 86711716

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 157, 172, 301, 314, 431, 602, 628, 862, 1099, 1204, 1724, 2198, 3017, 4396, 6034, 6751, 12068, 13502, 18533, 27004, 37066, 47257, 67667, 74132, 94514, 129731, 135334, 189028, 259462, 270668, 473669, 518924, 947338, 1894676, 2909681, 5819362, 11638724, 20367767, 40735534, 81471068]

約数ペア:

[(1, 81471068), (2, 40735534), (4, 20367767), (7, 11638724), (14, 5819362), (28, 2909681), (43, 1894676), (86, 947338), (157, 518924), (172, 473669), (301, 270668), (314, 259462), (431, 189028), (602, 135334), (628, 129731), (862, 94514), (1099, 74132), (1204, 67667), (1724, 47257), (2198, 37066), (3017, 27004), (4396, 18533), (6034, 13502), (6751, 12068)]