18053980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2999}}^1$

素因数の和:3058

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 26298020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 2999, 3010, 5998, 6020, 11996, 14995, 20993, 29990, 41986, 59980, 83972, 104965, 128957, 209930, 257914, 419860, 515828, 644785, 902699, 1289570, 1805398, 2579140, 3610796, 4513495, 9026990, 18053980]

約数ペア:

[(1, 18053980), (2, 9026990), (4, 4513495), (5, 3610796), (7, 2579140), (10, 1805398), (14, 1289570), (20, 902699), (28, 644785), (35, 515828), (43, 419860), (70, 257914), (86, 209930), (140, 128957), (172, 104965), (215, 83972), (301, 59980), (430, 41986), (602, 29990), (860, 20993), (1204, 14995), (1505, 11996), (2999, 6020), (3010, 5998)]