40845980

素因数分解:

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

素因数の和:1694

約数の個数: 48

約数和(自身を含む): 98594496

約数和(自身を除く): 57748516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1481, 1970, 2758, 2962, 3940, 5516, 5924, 6895, 7405, 10367, 13790, 14810, 20734, 27580, 29620, 41468, 51835, 103670, 207340, 291757, 583514, 1167028, 1458785, 2042299, 2917570, 4084598, 5835140, 8169196, 10211495, 20422990, 40845980]

約数ペア:

[(1, 40845980), (2, 20422990), (4, 10211495), (5, 8169196), (7, 5835140), (10, 4084598), (14, 2917570), (20, 2042299), (28, 1458785), (35, 1167028), (70, 583514), (140, 291757), (197, 207340), (394, 103670), (788, 51835), (985, 41468), (1379, 29620), (1481, 27580), (1970, 20734), (2758, 14810), (2962, 13790), (3940, 10367), (5516, 7405), (5924, 6895)]