18873040

素因数分解:

$2^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{877}}^1$

素因数の和:1159

約数の個数: 40

約数和(自身を含む): 44093160

約数和(自身を除く): 25220120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269, 538, 877, 1076, 1345, 1754, 2152, 2690, 3508, 4304, 4385, 5380, 7016, 8770, 10760, 14032, 17540, 21520, 35080, 70160, 235913, 471826, 943652, 1179565, 1887304, 2359130, 3774608, 4718260, 9436520, 18873040]

約数ペア:

[(1, 18873040), (2, 9436520), (4, 4718260), (5, 3774608), (8, 2359130), (10, 1887304), (16, 1179565), (20, 943652), (40, 471826), (80, 235913), (269, 70160), (538, 35080), (877, 21520), (1076, 17540), (1345, 14032), (1754, 10760), (2152, 8770), (2690, 7016), (3508, 5380), (4304, 4385)]