20199456220

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{311}}^1\times {\mathrm{15391}}^1$

素因数の和:15922

約数の個数: 48

約数和(自身を含む): 42759714816

約数和(自身を除く): 22560258596

約数列:

[1, 2, 4, 5, 10, 20, 211, 311, 422, 622, 844, 1055, 1244, 1555, 2110, 3110, 4220, 6220, 15391, 30782, 61564, 65621, 76955, 131242, 153910, 262484, 307820, 328105, 656210, 1312420, 3247501, 4786601, 6495002, 9573202, 12990004, 16237505, 19146404, 23933005, 32475010, 47866010, 64950020, 95732020, 1009972811, 2019945622, 4039891244, 5049864055, 10099728110, 20199456220]

約数ペア:

[(1, 20199456220), (2, 10099728110), (4, 5049864055), (5, 4039891244), (10, 2019945622), (20, 1009972811), (211, 95732020), (311, 64950020), (422, 47866010), (622, 32475010), (844, 23933005), (1055, 19146404), (1244, 16237505), (1555, 12990004), (2110, 9573202), (3110, 6495002), (4220, 4786601), (6220, 3247501), (15391, 1312420), (30782, 656210), (61564, 328105), (65621, 307820), (76955, 262484), (131242, 153910)]