13181440

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:313

約数の個数: 80

約数和(自身を含む): 33390720

約数和(自身を除く): 20209280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 271, 304, 320, 380, 512, 542, 608, 640, 760, 1084, 1216, 1280, 1355, 1520, 2168, 2432, 2560, 2710, 3040, 4336, 4864, 5149, 5420, 6080, 8672, 9728, 10298, 10840, 12160, 17344, 20596, 21680, 24320, 25745, 34688, 41192, 43360, 48640, 51490, 69376, 82384, 86720, 102980, 138752, 164768, 173440, 205960, 329536, 346880, 411920, 659072, 693760, 823840, 1318144, 1647680, 2636288, 3295360, 6590720, 13181440]

約数ペア:

[(1, 13181440), (2, 6590720), (4, 3295360), (5, 2636288), (8, 1647680), (10, 1318144), (16, 823840), (19, 693760), (20, 659072), (32, 411920), (38, 346880), (40, 329536), (64, 205960), (76, 173440), (80, 164768), (95, 138752), (128, 102980), (152, 86720), (160, 82384), (190, 69376), (256, 51490), (271, 48640), (304, 43360), (320, 41192), (380, 34688), (512, 25745), (542, 24320), (608, 21680), (640, 20596), (760, 17344), (1084, 12160), (1216, 10840), (1280, 10298), (1355, 9728), (1520, 8672), (2168, 6080), (2432, 5420), (2560, 5149), (2710, 4864), (3040, 4336)]