81617380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{6679}}^1$

素因数の和:6748

約数の個数: 48

約数和(自身を含む): 188536320

約数和(自身を除く): 106918940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 188, 235, 260, 470, 611, 940, 1222, 2444, 3055, 6110, 6679, 12220, 13358, 26716, 33395, 66790, 86827, 133580, 173654, 313913, 347308, 434135, 627826, 868270, 1255652, 1569565, 1736540, 3139130, 4080869, 6278260, 8161738, 16323476, 20404345, 40808690, 81617380]

約数ペア:

[(1, 81617380), (2, 40808690), (4, 20404345), (5, 16323476), (10, 8161738), (13, 6278260), (20, 4080869), (26, 3139130), (47, 1736540), (52, 1569565), (65, 1255652), (94, 868270), (130, 627826), (188, 434135), (235, 347308), (260, 313913), (470, 173654), (611, 133580), (940, 86827), (1222, 66790), (2444, 33395), (3055, 26716), (6110, 13358), (6679, 12220)]