20553458440

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6504259}}^1$

素因数の和:6504349

約数の個数: 32

約数和(自身を含む): 46830672000

約数和(自身を除く): 26277213560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6504259, 13008518, 26017036, 32521295, 52034072, 65042590, 130085180, 260170360, 513836461, 1027672922, 2055345844, 2569182305, 4110691688, 5138364610, 10276729220, 20553458440]

約数ペア:

[(1, 20553458440), (2, 10276729220), (4, 5138364610), (5, 4110691688), (8, 2569182305), (10, 2055345844), (20, 1027672922), (40, 513836461), (79, 260170360), (158, 130085180), (316, 65042590), (395, 52034072), (632, 32521295), (790, 26017036), (1580, 13008518), (3160, 6504259)]