81666060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{194443}}^1$

素因数の和:194462

約数の個数: 48

約数和(自身を含む): 261332736

約数和(自身を除く): 179666676

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 194443, 388886, 583329, 777772, 972215, 1166658, 1361101, 1944430, 2333316, 2722202, 2916645, 3888860, 4083303, 5444404, 5833290, 6805505, 8166606, 11666580, 13611010, 16333212, 20416515, 27222020, 40833030, 81666060]

約数ペア:

[(1, 81666060), (2, 40833030), (3, 27222020), (4, 20416515), (5, 16333212), (6, 13611010), (7, 11666580), (10, 8166606), (12, 6805505), (14, 5833290), (15, 5444404), (20, 4083303), (21, 3888860), (28, 2916645), (30, 2722202), (35, 2333316), (42, 1944430), (60, 1361101), (70, 1166658), (84, 972215), (105, 777772), (140, 583329), (210, 388886), (420, 194443)]