20200040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3797}}^1$

素因数の和:3834

約数の個数: 64

約数和(自身を含む): 54691200

約数和(自身を除く): 34491160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3797, 5320, 7594, 15188, 18985, 26579, 30376, 37970, 53158, 72143, 75940, 106316, 132895, 144286, 151880, 212632, 265790, 288572, 360715, 505001, 531580, 577144, 721430, 1010002, 1063160, 1442860, 2020004, 2525005, 2885720, 4040008, 5050010, 10100020, 20200040]

約数ペア:

[(1, 20200040), (2, 10100020), (4, 5050010), (5, 4040008), (7, 2885720), (8, 2525005), (10, 2020004), (14, 1442860), (19, 1063160), (20, 1010002), (28, 721430), (35, 577144), (38, 531580), (40, 505001), (56, 360715), (70, 288572), (76, 265790), (95, 212632), (133, 151880), (140, 144286), (152, 132895), (190, 106316), (266, 75940), (280, 72143), (380, 53158), (532, 37970), (665, 30376), (760, 26579), (1064, 18985), (1330, 15188), (2660, 7594), (3797, 5320)]