2021131120

素因数分解:

$2^4\times 5^1\times {\mathrm{5623}}^1\times {\mathrm{4493}}^1$

素因数の和:10129

約数の個数: 40

約数和(自身を含む): 4701011616

約数和(自身を除く): 2679880496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4493, 5623, 8986, 11246, 17972, 22465, 22492, 28115, 35944, 44930, 44984, 56230, 71888, 89860, 89968, 112460, 179720, 224920, 359440, 449840, 25264139, 50528278, 101056556, 126320695, 202113112, 252641390, 404226224, 505282780, 1010565560, 2021131120]

約数ペア:

[(1, 2021131120), (2, 1010565560), (4, 505282780), (5, 404226224), (8, 252641390), (10, 202113112), (16, 126320695), (20, 101056556), (40, 50528278), (80, 25264139), (4493, 449840), (5623, 359440), (8986, 224920), (11246, 179720), (17972, 112460), (22465, 89968), (22492, 89860), (28115, 71888), (35944, 56230), (44930, 44984)]