19381280

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4177}}^1$

素因数の和:4221

約数の個数: 48

約数和(自身を含む): 47378520

約数和(自身を除く): 27997240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4177, 4640, 8354, 16708, 20885, 33416, 41770, 66832, 83540, 121133, 133664, 167080, 242266, 334160, 484532, 605665, 668320, 969064, 1211330, 1938128, 2422660, 3876256, 4845320, 9690640, 19381280]

約数ペア:

[(1, 19381280), (2, 9690640), (4, 4845320), (5, 3876256), (8, 2422660), (10, 1938128), (16, 1211330), (20, 969064), (29, 668320), (32, 605665), (40, 484532), (58, 334160), (80, 242266), (116, 167080), (145, 133664), (160, 121133), (232, 83540), (290, 66832), (464, 41770), (580, 33416), (928, 20885), (1160, 16708), (2320, 8354), (4177, 4640)]