19395675

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 39494000

約数和(自身を除く): 20098325

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 39, 45, 57, 65, 75, 95, 117, 171, 195, 225, 247, 285, 325, 349, 475, 585, 741, 855, 975, 1047, 1235, 1425, 1745, 2223, 2925, 3141, 3705, 4275, 4537, 5235, 6175, 6631, 8725, 11115, 13611, 15705, 18525, 19893, 22685, 26175, 33155, 40833, 55575, 59679, 68055, 78525, 86203, 99465, 113425, 165775, 204165, 258609, 298395, 340275, 431015, 497325, 775827, 1020825, 1293045, 1491975, 2155075, 3879135, 6465225, 19395675]

約数ペア:

[(1, 19395675), (3, 6465225), (5, 3879135), (9, 2155075), (13, 1491975), (15, 1293045), (19, 1020825), (25, 775827), (39, 497325), (45, 431015), (57, 340275), (65, 298395), (75, 258609), (95, 204165), (117, 165775), (171, 113425), (195, 99465), (225, 86203), (247, 78525), (285, 68055), (325, 59679), (349, 55575), (475, 40833), (585, 33155), (741, 26175), (855, 22685), (975, 19893), (1047, 18525), (1235, 15705), (1425, 13611), (1745, 11115), (2223, 8725), (2925, 6631), (3141, 6175), (3705, 5235), (4275, 4537)]