81339384

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1723}}^1$

素因数の和:2020

約数の個数: 64

約数和(自身を含む): 233360640

約数和(自身を除く): 152021256

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 281, 562, 843, 1124, 1686, 1723, 1967, 2248, 3372, 3446, 3934, 5169, 5901, 6744, 6892, 7868, 10338, 11802, 12061, 13784, 15736, 20676, 23604, 24122, 36183, 41352, 47208, 48244, 72366, 96488, 144732, 289464, 484163, 968326, 1452489, 1936652, 2904978, 3389141, 3873304, 5809956, 6778282, 10167423, 11619912, 13556564, 20334846, 27113128, 40669692, 81339384]

約数ペア:

[(1, 81339384), (2, 40669692), (3, 27113128), (4, 20334846), (6, 13556564), (7, 11619912), (8, 10167423), (12, 6778282), (14, 5809956), (21, 3873304), (24, 3389141), (28, 2904978), (42, 1936652), (56, 1452489), (84, 968326), (168, 484163), (281, 289464), (562, 144732), (843, 96488), (1124, 72366), (1686, 48244), (1723, 47208), (1967, 41352), (2248, 36183), (3372, 24122), (3446, 23604), (3934, 20676), (5169, 15736), (5901, 13784), (6744, 12061), (6892, 11802), (7868, 10338)]