19417970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{367}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 42287616

約数和(自身を除く): 22869646

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 37, 55, 65, 74, 110, 130, 143, 185, 286, 367, 370, 407, 481, 715, 734, 814, 962, 1430, 1835, 2035, 2405, 3670, 4037, 4070, 4771, 4810, 5291, 8074, 9542, 10582, 13579, 20185, 23855, 26455, 27158, 40370, 47710, 52481, 52910, 67895, 104962, 135790, 149369, 176527, 262405, 298738, 353054, 524810, 746845, 882635, 1493690, 1765270, 1941797, 3883594, 9708985, 19417970]

約数ペア:

[(1, 19417970), (2, 9708985), (5, 3883594), (10, 1941797), (11, 1765270), (13, 1493690), (22, 882635), (26, 746845), (37, 524810), (55, 353054), (65, 298738), (74, 262405), (110, 176527), (130, 149369), (143, 135790), (185, 104962), (286, 67895), (367, 52910), (370, 52481), (407, 47710), (481, 40370), (715, 27158), (734, 26455), (814, 23855), (962, 20185), (1430, 13579), (1835, 10582), (2035, 9542), (2405, 8074), (3670, 5291), (4037, 4810), (4070, 4771)]