20132140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20543}}^1$

素因数の和:20566

約数の個数: 36

約数和(自身を含む): 49182336

約数和(自身を除く): 29050196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20543, 41086, 82172, 102715, 143801, 205430, 287602, 410860, 575204, 719005, 1006607, 1438010, 2013214, 2876020, 4026428, 5033035, 10066070, 20132140]

約数ペア:

[(1, 20132140), (2, 10066070), (4, 5033035), (5, 4026428), (7, 2876020), (10, 2013214), (14, 1438010), (20, 1006607), (28, 719005), (35, 575204), (49, 410860), (70, 287602), (98, 205430), (140, 143801), (196, 102715), (245, 82172), (490, 41086), (980, 20543)]