213437420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2371}}^1$

素因数の和:3030

約数の個数: 48

約数和(自身を含む): 513262848

約数和(自身を除く): 299825428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 1286, 2371, 2572, 3215, 4501, 4742, 6430, 9002, 9484, 11855, 12860, 16597, 18004, 22505, 23710, 33194, 45010, 47420, 66388, 82985, 90020, 165970, 331940, 1524553, 3049106, 6098212, 7622765, 10671871, 15245530, 21343742, 30491060, 42687484, 53359355, 106718710, 213437420]

約数ペア:

[(1, 213437420), (2, 106718710), (4, 53359355), (5, 42687484), (7, 30491060), (10, 21343742), (14, 15245530), (20, 10671871), (28, 7622765), (35, 6098212), (70, 3049106), (140, 1524553), (643, 331940), (1286, 165970), (2371, 90020), (2572, 82985), (3215, 66388), (4501, 47420), (4742, 45010), (6430, 33194), (9002, 23710), (9484, 22505), (11855, 18004), (12860, 16597)]