213708740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{2999}}^1$

素因数の和:3524

約数の個数: 48

約数和(自身を含む): 514080000

約数和(自身を除く): 300371260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509, 1018, 2036, 2545, 2999, 3563, 5090, 5998, 7126, 10180, 11996, 14252, 14995, 17815, 20993, 29990, 35630, 41986, 59980, 71260, 83972, 104965, 209930, 419860, 1526491, 3052982, 6105964, 7632455, 10685437, 15264910, 21370874, 30529820, 42741748, 53427185, 106854370, 213708740]

約数ペア:

[(1, 213708740), (2, 106854370), (4, 53427185), (5, 42741748), (7, 30529820), (10, 21370874), (14, 15264910), (20, 10685437), (28, 7632455), (35, 6105964), (70, 3052982), (140, 1526491), (509, 419860), (1018, 209930), (2036, 104965), (2545, 83972), (2999, 71260), (3563, 59980), (5090, 41986), (5998, 35630), (7126, 29990), (10180, 20993), (11996, 17815), (14252, 14995)]