408048459

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{229}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 689955840

約数和(自身を除く): 281907381

約数列:

[1, 3, 7, 13, 21, 39, 61, 91, 107, 183, 229, 273, 321, 427, 687, 749, 793, 1281, 1391, 1603, 2247, 2379, 2977, 4173, 4809, 5551, 6527, 8931, 9737, 13969, 16653, 19581, 20839, 24503, 29211, 41907, 45689, 62517, 73509, 84851, 97783, 137067, 171521, 181597, 254553, 293349, 318539, 514563, 544791, 593957, 955617, 1271179, 1494683, 1781871, 2229773, 3813537, 4484049, 6689319, 10462781, 19430879, 31388343, 58292637, 136016153, 408048459]

約数ペア:

[(1, 408048459), (3, 136016153), (7, 58292637), (13, 31388343), (21, 19430879), (39, 10462781), (61, 6689319), (91, 4484049), (107, 3813537), (183, 2229773), (229, 1781871), (273, 1494683), (321, 1271179), (427, 955617), (687, 593957), (749, 544791), (793, 514563), (1281, 318539), (1391, 293349), (1603, 254553), (2247, 181597), (2379, 171521), (2977, 137067), (4173, 97783), (4809, 84851), (5551, 73509), (6527, 62517), (8931, 45689), (9737, 41907), (13969, 29211), (16653, 24503), (19581, 20839)]