19955480

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17203}}^1$

素因数の和:17243

約数の個数: 32

約数和(自身を含む): 46450800

約数和(自身を除く): 26495320

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17203, 34406, 68812, 86015, 137624, 172030, 344060, 498887, 688120, 997774, 1995548, 2494435, 3991096, 4988870, 9977740, 19955480]

約数ペア:

[(1, 19955480), (2, 9977740), (4, 4988870), (5, 3991096), (8, 2494435), (10, 1995548), (20, 997774), (29, 688120), (40, 498887), (58, 344060), (116, 172030), (145, 137624), (232, 86015), (290, 68812), (580, 34406), (1160, 17203)]