78720978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{283}}^1$

素因数の和:511

約数の個数: 64

約数和(自身を含む): 186485760

約数和(自身を除く): 107764782

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 179, 222, 259, 283, 358, 518, 537, 566, 777, 849, 1074, 1253, 1554, 1698, 1981, 2506, 3759, 3962, 5943, 6623, 7518, 10471, 11886, 13246, 19869, 20942, 31413, 39738, 46361, 50657, 62826, 73297, 92722, 101314, 139083, 146594, 151971, 219891, 278166, 303942, 354599, 439782, 709198, 1063797, 1874309, 2127594, 3748618, 5622927, 11245854, 13120163, 26240326, 39360489, 78720978]

約数ペア:

[(1, 78720978), (2, 39360489), (3, 26240326), (6, 13120163), (7, 11245854), (14, 5622927), (21, 3748618), (37, 2127594), (42, 1874309), (74, 1063797), (111, 709198), (179, 439782), (222, 354599), (259, 303942), (283, 278166), (358, 219891), (518, 151971), (537, 146594), (566, 139083), (777, 101314), (849, 92722), (1074, 73297), (1253, 62826), (1554, 50657), (1698, 46361), (1981, 39738), (2506, 31413), (3759, 20942), (3962, 19869), (5943, 13246), (6623, 11886), (7518, 10471)]