31306236

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:435

約数の個数: 72

約数和(自身を含む): 81164160

約数和(自身を除く): 49857924

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 169, 172, 258, 338, 359, 507, 516, 559, 676, 718, 1014, 1077, 1118, 1436, 1677, 2028, 2154, 2236, 3354, 4308, 4667, 6708, 7267, 9334, 14001, 14534, 15437, 18668, 21801, 28002, 29068, 30874, 43602, 46311, 56004, 60671, 61748, 87204, 92622, 121342, 182013, 185244, 200681, 242684, 364026, 401362, 602043, 728052, 802724, 1204086, 2408172, 2608853, 5217706, 7826559, 10435412, 15653118, 31306236]

約数ペア:

[(1, 31306236), (2, 15653118), (3, 10435412), (4, 7826559), (6, 5217706), (12, 2608853), (13, 2408172), (26, 1204086), (39, 802724), (43, 728052), (52, 602043), (78, 401362), (86, 364026), (129, 242684), (156, 200681), (169, 185244), (172, 182013), (258, 121342), (338, 92622), (359, 87204), (507, 61748), (516, 60671), (559, 56004), (676, 46311), (718, 43602), (1014, 30874), (1077, 29068), (1118, 28002), (1436, 21801), (1677, 18668), (2028, 15437), (2154, 14534), (2236, 14001), (3354, 9334), (4308, 7267), (4667, 6708)]