19946560

素因数分解:

$2^6\times 5^1\times {\mathrm{83}}^1\times {\mathrm{751}}^1$

素因数の和:851

約数の個数: 56

約数和(自身を含む): 48134016

約数和(自身を除く): 28187456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 160, 166, 320, 332, 415, 664, 751, 830, 1328, 1502, 1660, 2656, 3004, 3320, 3755, 5312, 6008, 6640, 7510, 12016, 13280, 15020, 24032, 26560, 30040, 48064, 60080, 62333, 120160, 124666, 240320, 249332, 311665, 498664, 623330, 997328, 1246660, 1994656, 2493320, 3989312, 4986640, 9973280, 19946560]

約数ペア:

[(1, 19946560), (2, 9973280), (4, 4986640), (5, 3989312), (8, 2493320), (10, 1994656), (16, 1246660), (20, 997328), (32, 623330), (40, 498664), (64, 311665), (80, 249332), (83, 240320), (160, 124666), (166, 120160), (320, 62333), (332, 60080), (415, 48064), (664, 30040), (751, 26560), (830, 24032), (1328, 15020), (1502, 13280), (1660, 12016), (2656, 7510), (3004, 6640), (3320, 6008), (3755, 5312)]