19740140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20143}}^1$

素因数の和:20166

約数の個数: 36

約数和(自身を含む): 48224736

約数和(自身を除く): 28484596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20143, 40286, 80572, 100715, 141001, 201430, 282002, 402860, 564004, 705005, 987007, 1410010, 1974014, 2820020, 3948028, 4935035, 9870070, 19740140]

約数ペア:

[(1, 19740140), (2, 9870070), (4, 4935035), (5, 3948028), (7, 2820020), (10, 1974014), (14, 1410010), (20, 987007), (28, 705005), (35, 564004), (49, 402860), (70, 282002), (98, 201430), (140, 141001), (196, 100715), (245, 80572), (490, 40286), (980, 20143)]