81986730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{390413}}^1$

素因数の和:390430

約数の個数: 32

約数和(自身を含む): 224878464

約数和(自身を除く): 142891734

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 390413, 780826, 1171239, 1952065, 2342478, 2732891, 3904130, 5465782, 5856195, 8198673, 11712390, 13664455, 16397346, 27328910, 40993365, 81986730]

約数ペア:

[(1, 81986730), (2, 40993365), (3, 27328910), (5, 16397346), (6, 13664455), (7, 11712390), (10, 8198673), (14, 5856195), (15, 5465782), (21, 3904130), (30, 2732891), (35, 2342478), (42, 1952065), (70, 1171239), (105, 780826), (210, 390413)]