16890225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{347}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 31069440

約数和(自身を除く): 14179215

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 59, 75, 165, 177, 275, 295, 347, 649, 825, 885, 1041, 1475, 1735, 1947, 3245, 3817, 4425, 5205, 8675, 9735, 11451, 16225, 19085, 20473, 26025, 48675, 57255, 61419, 95425, 102365, 225203, 286275, 307095, 511825, 675609, 1126015, 1535475, 3378045, 5630075, 16890225]

約数ペア:

[(1, 16890225), (3, 5630075), (5, 3378045), (11, 1535475), (15, 1126015), (25, 675609), (33, 511825), (55, 307095), (59, 286275), (75, 225203), (165, 102365), (177, 95425), (275, 61419), (295, 57255), (347, 48675), (649, 26025), (825, 20473), (885, 19085), (1041, 16225), (1475, 11451), (1735, 9735), (1947, 8675), (3245, 5205), (3817, 4425)]