211463740

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 450261504

約数和(自身を除く): 238797764

約数列:

[1, 2, 4, 5, 10, 20, 191, 197, 281, 382, 394, 562, 764, 788, 955, 985, 1124, 1405, 1910, 1970, 2810, 3820, 3940, 5620, 37627, 53671, 55357, 75254, 107342, 110714, 150508, 188135, 214684, 221428, 268355, 276785, 376270, 536710, 553570, 752540, 1073420, 1107140, 10573187, 21146374, 42292748, 52865935, 105731870, 211463740]

約数ペア:

[(1, 211463740), (2, 105731870), (4, 52865935), (5, 42292748), (10, 21146374), (20, 10573187), (191, 1107140), (197, 1073420), (281, 752540), (382, 553570), (394, 536710), (562, 376270), (764, 276785), (788, 268355), (955, 221428), (985, 214684), (1124, 188135), (1405, 150508), (1910, 110714), (1970, 107342), (2810, 75254), (3820, 55357), (3940, 53671), (5620, 37627)]