81153918

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{257}}^1\times {\mathrm{331}}^1$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 180391536

約数和(自身を除く): 99237618

約数列:

[1, 2, 3, 6, 9, 18, 53, 106, 159, 257, 318, 331, 477, 514, 662, 771, 954, 993, 1542, 1986, 2313, 2979, 4626, 5958, 13621, 17543, 27242, 35086, 40863, 52629, 81726, 85067, 105258, 122589, 157887, 170134, 245178, 255201, 315774, 510402, 765603, 1531206, 4508551, 9017102, 13525653, 27051306, 40576959, 81153918]

約数ペア:

[(1, 81153918), (2, 40576959), (3, 27051306), (6, 13525653), (9, 9017102), (18, 4508551), (53, 1531206), (106, 765603), (159, 510402), (257, 315774), (318, 255201), (331, 245178), (477, 170134), (514, 157887), (662, 122589), (771, 105258), (954, 85067), (993, 81726), (1542, 52629), (1986, 40863), (2313, 35086), (2979, 27242), (4626, 17543), (5958, 13621)]