19428843650

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{271}}^1\times {\mathrm{13921}}^1$

素因数の和:14307

約数の個数: 48

約数和(自身を含む): 36625774848

約数和(自身を除く): 17196931198

約数列:

[1, 2, 5, 10, 25, 50, 103, 206, 271, 515, 542, 1030, 1355, 2575, 2710, 5150, 6775, 13550, 13921, 27842, 27913, 55826, 69605, 139210, 139565, 279130, 348025, 696050, 697825, 1395650, 1433863, 2867726, 3772591, 7169315, 7545182, 14338630, 18862955, 35846575, 37725910, 71693150, 94314775, 188629550, 388576873, 777153746, 1942884365, 3885768730, 9714421825, 19428843650]

約数ペア:

[(1, 19428843650), (2, 9714421825), (5, 3885768730), (10, 1942884365), (25, 777153746), (50, 388576873), (103, 188629550), (206, 94314775), (271, 71693150), (515, 37725910), (542, 35846575), (1030, 18862955), (1355, 14338630), (2575, 7545182), (2710, 7169315), (5150, 3772591), (6775, 2867726), (13550, 1433863), (13921, 1395650), (27842, 697825), (27913, 696050), (55826, 348025), (69605, 279130), (139210, 139565)]