389902876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{1721}}^1$

素因数の和:2026

約数の個数: 48

約数和(自身を含む): 786885120

約数和(自身を除く): 396982244

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 271, 418, 542, 836, 1084, 1721, 2981, 3442, 5149, 5962, 6884, 10298, 11924, 18931, 20596, 32699, 37862, 56639, 65398, 75724, 113278, 130796, 226556, 359689, 466391, 719378, 932782, 1438756, 1865564, 5130301, 8861429, 10260602, 17722858, 20521204, 35445716, 97475719, 194951438, 389902876]

約数ペア:

[(1, 389902876), (2, 194951438), (4, 97475719), (11, 35445716), (19, 20521204), (22, 17722858), (38, 10260602), (44, 8861429), (76, 5130301), (209, 1865564), (271, 1438756), (418, 932782), (542, 719378), (836, 466391), (1084, 359689), (1721, 226556), (2981, 130796), (3442, 113278), (5149, 75724), (5962, 65398), (6884, 56639), (10298, 37862), (11924, 32699), (18931, 20596)]