978177850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{7879}}^1$

素因数の和:8095

約数の個数: 48

約数和(自身を含む): 1969873920

約数和(自身を除く): 991696070

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 191, 325, 382, 650, 955, 1910, 2483, 4775, 4966, 7879, 9550, 12415, 15758, 24830, 39395, 62075, 78790, 102427, 124150, 196975, 204854, 393950, 512135, 1024270, 1504889, 2560675, 3009778, 5121350, 7524445, 15048890, 19563557, 37622225, 39127114, 75244450, 97817785, 195635570, 489088925, 978177850]

約数ペア:

[(1, 978177850), (2, 489088925), (5, 195635570), (10, 97817785), (13, 75244450), (25, 39127114), (26, 37622225), (50, 19563557), (65, 15048890), (130, 7524445), (191, 5121350), (325, 3009778), (382, 2560675), (650, 1504889), (955, 1024270), (1910, 512135), (2483, 393950), (4775, 204854), (4966, 196975), (7879, 124150), (9550, 102427), (12415, 78790), (15758, 62075), (24830, 39395)]