20809789780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3371}}^1\times {\mathrm{23743}}^1$

素因数の和:27136

約数の個数: 48

約数和(自身を含む): 47078083584

約数和(自身を除く): 26268293804

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 3371, 6742, 13484, 16855, 23743, 33710, 43823, 47486, 67420, 87646, 94972, 118715, 175292, 219115, 237430, 308659, 438230, 474860, 617318, 876460, 1234636, 1543295, 3086590, 6173180, 80037653, 160075306, 320150612, 400188265, 800376530, 1040489489, 1600753060, 2080978978, 4161957956, 5202447445, 10404894890, 20809789780]

約数ペア:

[(1, 20809789780), (2, 10404894890), (4, 5202447445), (5, 4161957956), (10, 2080978978), (13, 1600753060), (20, 1040489489), (26, 800376530), (52, 400188265), (65, 320150612), (130, 160075306), (260, 80037653), (3371, 6173180), (6742, 3086590), (13484, 1543295), (16855, 1234636), (23743, 876460), (33710, 617318), (43823, 474860), (47486, 438230), (67420, 308659), (87646, 237430), (94972, 219115), (118715, 175292)]