2021260820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{15413}}^1$

素因数の和:15584

約数の個数: 48

約数和(自身を含む): 4350447360

約数和(自身を除く): 2329186540

約数列:

[1, 2, 4, 5, 10, 20, 79, 83, 158, 166, 316, 332, 395, 415, 790, 830, 1580, 1660, 6557, 13114, 15413, 26228, 30826, 32785, 61652, 65570, 77065, 131140, 154130, 308260, 1217627, 1279279, 2435254, 2558558, 4870508, 5117116, 6088135, 6396395, 12176270, 12792790, 24352540, 25585580, 101063041, 202126082, 404252164, 505315205, 1010630410, 2021260820]

約数ペア:

[(1, 2021260820), (2, 1010630410), (4, 505315205), (5, 404252164), (10, 202126082), (20, 101063041), (79, 25585580), (83, 24352540), (158, 12792790), (166, 12176270), (316, 6396395), (332, 6088135), (395, 5117116), (415, 4870508), (790, 2558558), (830, 2435254), (1580, 1279279), (1660, 1217627), (6557, 308260), (13114, 154130), (15413, 131140), (26228, 77065), (30826, 65570), (32785, 61652)]