20422990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1481}}^1$

素因数の和:1692

約数の個数: 32

約数和(自身を含む): 42254784

約数和(自身を除く): 21831794

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 197, 394, 985, 1379, 1481, 1970, 2758, 2962, 6895, 7405, 10367, 13790, 14810, 20734, 51835, 103670, 291757, 583514, 1458785, 2042299, 2917570, 4084598, 10211495, 20422990]

約数ペア:

[(1, 20422990), (2, 10211495), (5, 4084598), (7, 2917570), (10, 2042299), (14, 1458785), (35, 583514), (70, 291757), (197, 103670), (394, 51835), (985, 20734), (1379, 14810), (1481, 13790), (1970, 10367), (2758, 7405), (2962, 6895)]