6818840

素因数分解:

$2^3\times 5^1\times 7^4\times {\mathrm{71}}^1$

素因数の和:110

約数の個数: 80

約数和(自身を含む): 18150480

約数和(自身を除く): 11331640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 71, 98, 140, 142, 196, 245, 280, 284, 343, 355, 392, 490, 497, 568, 686, 710, 980, 994, 1372, 1420, 1715, 1960, 1988, 2401, 2485, 2744, 2840, 3430, 3479, 3976, 4802, 4970, 6860, 6958, 9604, 9940, 12005, 13720, 13916, 17395, 19208, 19880, 24010, 24353, 27832, 34790, 48020, 48706, 69580, 96040, 97412, 121765, 139160, 170471, 194824, 243530, 340942, 487060, 681884, 852355, 974120, 1363768, 1704710, 3409420, 6818840]

約数ペア:

[(1, 6818840), (2, 3409420), (4, 1704710), (5, 1363768), (7, 974120), (8, 852355), (10, 681884), (14, 487060), (20, 340942), (28, 243530), (35, 194824), (40, 170471), (49, 139160), (56, 121765), (70, 97412), (71, 96040), (98, 69580), (140, 48706), (142, 48020), (196, 34790), (245, 27832), (280, 24353), (284, 24010), (343, 19880), (355, 19208), (392, 17395), (490, 13916), (497, 13720), (568, 12005), (686, 9940), (710, 9604), (980, 6958), (994, 6860), (1372, 4970), (1420, 4802), (1715, 3976), (1960, 3479), (1988, 3430), (2401, 2840), (2485, 2744)]