19780254

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1483}}^1$

素因数の和:1526

約数の個数: 64

約数和(自身を含む): 49862400

約数和(自身を除く): 30082146

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 114, 117, 171, 234, 247, 342, 351, 494, 513, 702, 741, 1026, 1482, 1483, 2223, 2966, 4446, 4449, 6669, 8898, 13338, 13347, 19279, 26694, 28177, 38558, 40041, 56354, 57837, 80082, 84531, 115674, 169062, 173511, 253593, 347022, 366301, 507186, 520533, 732602, 760779, 1041066, 1098903, 1521558, 2197806, 3296709, 6593418, 9890127, 19780254]

約数ペア:

[(1, 19780254), (2, 9890127), (3, 6593418), (6, 3296709), (9, 2197806), (13, 1521558), (18, 1098903), (19, 1041066), (26, 760779), (27, 732602), (38, 520533), (39, 507186), (54, 366301), (57, 347022), (78, 253593), (114, 173511), (117, 169062), (171, 115674), (234, 84531), (247, 80082), (342, 57837), (351, 56354), (494, 40041), (513, 38558), (702, 28177), (741, 26694), (1026, 19279), (1482, 13347), (1483, 13338), (2223, 8898), (2966, 6669), (4446, 4449)]