19855720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17117}}^1$

素因数の和:17157

約数の個数: 32

約数和(自身を含む): 46218600

約数和(自身を除く): 26362880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17117, 34234, 68468, 85585, 136936, 171170, 342340, 496393, 684680, 992786, 1985572, 2481965, 3971144, 4963930, 9927860, 19855720]

約数ペア:

[(1, 19855720), (2, 9927860), (4, 4963930), (5, 3971144), (8, 2481965), (10, 1985572), (20, 992786), (29, 684680), (40, 496393), (58, 342340), (116, 171170), (145, 136936), (232, 85585), (290, 68468), (580, 34234), (1160, 17117)]