2119864820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{31147}}^1$

素因数の和:31280

約数の個数: 48

約数和(自身を含む): 4615386048

約数和(自身を除く): 2495521228

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 164, 166, 205, 332, 410, 415, 820, 830, 1660, 3403, 6806, 13612, 17015, 31147, 34030, 62294, 68060, 124588, 155735, 311470, 622940, 1277027, 2554054, 2585201, 5108108, 5170402, 6385135, 10340804, 12770270, 12926005, 25540540, 25852010, 51704020, 105993241, 211986482, 423972964, 529966205, 1059932410, 2119864820]

約数ペア:

[(1, 2119864820), (2, 1059932410), (4, 529966205), (5, 423972964), (10, 211986482), (20, 105993241), (41, 51704020), (82, 25852010), (83, 25540540), (164, 12926005), (166, 12770270), (205, 10340804), (332, 6385135), (410, 5170402), (415, 5108108), (820, 2585201), (830, 2554054), (1660, 1277027), (3403, 622940), (6806, 311470), (13612, 155735), (17015, 124588), (31147, 68060), (34030, 62294)]