1808698870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{823}}^1\times {\mathrm{19979}}^1$

素因数の和:20820

約数の個数: 32

約数和(自身を含む): 3556120320

約数和(自身を除く): 1747421450

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 823, 1646, 4115, 8230, 9053, 18106, 19979, 39958, 45265, 90530, 99895, 199790, 219769, 439538, 1098845, 2197690, 16442717, 32885434, 82213585, 164427170, 180869887, 361739774, 904349435, 1808698870]

約数ペア:

[(1, 1808698870), (2, 904349435), (5, 361739774), (10, 180869887), (11, 164427170), (22, 82213585), (55, 32885434), (110, 16442717), (823, 2197690), (1646, 1098845), (4115, 439538), (8230, 219769), (9053, 199790), (18106, 99895), (19979, 90530), (39958, 45265)]