20161651640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2040653}}^1$

素因数の和:2040696

約数の個数: 64

約数和(自身を含む): 51424480800

約数和(自身を除く): 31262829160

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 2040653, 4081306, 8162612, 10203265, 16325224, 20406530, 26528489, 38772407, 40813060, 53056978, 77544814, 81626120, 106113956, 132642445, 155089628, 193862035, 212227912, 265284890, 310179256, 387724070, 504041291, 530569780, 775448140, 1008082582, 1061139560, 1550896280, 2016165164, 2520206455, 4032330328, 5040412910, 10080825820, 20161651640]

約数ペア:

[(1, 20161651640), (2, 10080825820), (4, 5040412910), (5, 4032330328), (8, 2520206455), (10, 2016165164), (13, 1550896280), (19, 1061139560), (20, 1008082582), (26, 775448140), (38, 530569780), (40, 504041291), (52, 387724070), (65, 310179256), (76, 265284890), (95, 212227912), (104, 193862035), (130, 155089628), (152, 132642445), (190, 106113956), (247, 81626120), (260, 77544814), (380, 53056978), (494, 40813060), (520, 38772407), (760, 26528489), (988, 20406530), (1235, 16325224), (1976, 10203265), (2470, 8162612), (4940, 4081306), (9880, 2040653)]