81729070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{971}}^1$

素因数の和:1440

約数の個数: 32

約数和(自身を含む): 155364480

約数和(自身を除く): 73635410

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 443, 886, 971, 1942, 2215, 4430, 4855, 8417, 9710, 16834, 18449, 36898, 42085, 84170, 92245, 184490, 430153, 860306, 2150765, 4301530, 8172907, 16345814, 40864535, 81729070]

約数ペア:

[(1, 81729070), (2, 40864535), (5, 16345814), (10, 8172907), (19, 4301530), (38, 2150765), (95, 860306), (190, 430153), (443, 184490), (886, 92245), (971, 84170), (1942, 42085), (2215, 36898), (4430, 18449), (4855, 16834), (8417, 9710)]